My list comes courtesy of ex, father of ds:
Older than me, made/makes a habit of dating naive/ignorant girls quite a bit younger than him.
Really really lovely for a couple of weeks, then the first time he got drunk in my presence he spent about an hour in my front room telling me what a stuck up c* I was (I sat and listened politely 
).
Used to bitch about his ex (mother of his older kids) constantly, inc in front of them.
Ironically, used to drop casual hints that he might have been having sex with this ex when he visited their kids early in our relationship.
I gave him a key to my flat. He always, always rang the doorbell. It drove me mad that he wouldn't just let himself in, but I always had to get up and go to the door. He thought it was funny.
Completely blanked my friends. Literally, they'd say "hi" and he'd walk off in the other direction. He'd also refuse to come in if they were in the house.
Had a one night stand, told me about it, and made a point of telling me that he and the woman he slept with had spent at least part of the night laughing together about how ugly I am.
If a man accidentally made eye contact with him he'd stare him down aggressively.
I won an award once, he talked me out of going in person to the prizegiving party because everyone there would be stuck up c*s (additional subtext: I might sleep with one of them.)
Gave me advice on moving house depending on which areas had the smallest proportion of single professional men (subtext: didn't want me moving to anywhere where I might sleep with someone).
Verbally and emotionally abused me using terms from mental health conditions, learning disabilities and personality disorders.
Is unfiltered in the extreme, vulgar as heck, and really inappropriate. He calls it "being real" and despises anyone who isn't (= me), we can all just fuck off.
Would start highly inappropriate conversations with strangers in shops and restaurants, knowing it made me uncomfortable and embarrassed (and then telling me there was something wrong with me mentally for feeling that way).
When I was on the phone to someone he would come right up to me and start a suddenly imperative conversation without any regard for the fact I was busy/couldn't talk.
Inspected and criticised my washing up.
Criticised and mocked my driving.
Borrowed my car and drove it well over the speed limit, recklessly, on very dangerous roads. Is a wildly aggressive driver but also road ragey towards others 
If he got angry with me in public he would powerwalk away up the road ahead of me, leaving me trailing meekly in his wake.
Alternatively, he would shout and verbally abuse me until I cried, then as soon as he saw tears he'd soften his tone. NEVER apologised for anything he said or did.
Accused me (in a rage) of fancying/flirting with his friend because I used the word 'vagina' in his company. This was after several years of 'jokey' accusations and interrogations that I fancied/was flirting with said friend.
'Jokey' accusations of "being in love with" random men I happened to glance at in the street, or hold doors open for in shops etc, inc in front of his family members, cue much laughing all round.
Would started humorous conversations with his family about my weight if I put some on. "We're not being nasty." Er, yes you are.
I got an infection after having a coil inserted, I was in agony (womb contracting) and had to go to A&E in the middle of the night. He was making jokes about the doctor thinking I had a "stinky c*."
A song came on the radio one time that I liked. He sneeringly asked me if I liked it because it had a couple of "big words" in it.
Stopped talking to me when I fell pg even though we lived in the same house (mine). We split up, he stayed in the house.
Alternately disinterested/viciously nasty to me all the way through pg. I can't even type some of the things he said they were too awful.
For three years post-baby I was never apart from DS at all and literally never went anywhere without him. When I asked ex to start having him one evening once a week he accused me of "not loving my son".
Every treat or day out I organised for DS was ultimately for my benefit, somehow, because I'm a "selfish c*."
Has spent ten years calling me a c*.
Talks to me like a dog in public. Literally, in the sharp, angry voice you'd use if your dog was about to roll in fox shit.
Doesn't think women with children should date because every second guy is obviously a paedophile, x1,000,000 in my case. Stops talking to me if he knows (or thinks) I'm dating.
Phones incessantly. If I don't answer he has been known to ring up to 40 times in the space of an hour. On occasion we've had a conversation and I've pocketed my mobile without switching it off, then taken it out again a while later to find he is still on the other end of the line, listening to what I'm up to (ie trying to find out if I'm with a man).
I've spent ten years trying to coparent with this guy. Have managed to distance myself as much as I can while still remaining civilised which of course is the right thing to do (??) and what the child wants. But he gets at me through ds now. His latest thing is, when collecting him for contact, he'll start off by asking him, "What's wrong? What's the matter? What's happened?" as if every time he picks him up he's rescuing DS from some kind of terrible situation at home.
He also does this thing, I wonder if anyone else's exes do it: when he wants to cross a road he just walks out into traffic. He doesn't dart across dodging cars, even; he just saunters out and fuck everyone else, they can wait. He glares at any driver who gives him a look and if someone has the temerity to beep he'll just stand there glaring at them in the middle of the road in front of their car so they can't move at all.