Perfect timing. My extremely abusive brother phoned today. I was busy. (I was talking to my GF for 10 mins before she started work)
The conversation went something like this:
me: Hi
Him: Hi
me: can I call you back in 10 minutes, I'm busy now
him: no blah blah blah
me: I'm going to call you back in 10 minutes, I'm busy now hang up
He rings me back straight away. My GF wisely advised me not to answer it...
I answered it (didnt want the voicemail)
him: You listen to me
me: (cutting him off): No, I'm busy, I'll phone you back in 10 minutes hang up
called him back in 10 minutes once GF was in work.
me: hi
him: hi, what were you doing
me: I was busy
him (threatening): look, you're going to tell me what you were doing
me: No, actually, it's none of your business
he started shouting and swearing as he does. once he almost calms down to talking again: i could understand if you were in hospital or something like that*, but if you're not even going to tell me then .....
*and this is why you MUST NOT give an excuse. What you are/were doing is none of their business, you consider it more important than what they want you to do, and they need to get over it.
I can't (and dont particularly want to) recall the rest of the conversation word for word. As well as shouting and swearing, he also used emotional blackmail ("look, I've been going round for 2 hours, missed 2 appointments and am running late for a train to get your christmas present...."), told me I was high and mighty- the works really. I'm not getting a christmas present off him, apparently (I wasn't expecting one and only got him one to keep my parents happy). He's a bit schizophrenic so I suspect I'll end up with something small though.
In the past he's also been really really nice to me (when trying to borrow a couple of thousand pounds to commit fraud with...) which set off just as many warning bells.
I think it's easier for me as I'm a guy (and had to grow up with that ^). My GF is getting pretty damned good at saying no though- it's a skill after all. When I first met her she said yes to everything and couldn't stand up for herself at all (crap parents) Now she can actually say "no, I've made plans". Still gives excuses when pressed but I point this out to her and it's getting better- in 6 months she'll be able to withstand my brother on a bad day, lol.
Start small- say "no" when the lady asks for your nectar card, never give excuses unless you want to and before you know it you'll be much more relaxed :)