Erm, yeah. Loads! I scream more than I cry, I think.
Rollercoasters (hate them! Don't go on them any more.)
Being splashed with cold water can make me scream.
Spiders, wasps, particularly gnarly unexpected moths. Actually the wasp one is ridiculous and I know it but I can't help it - it is a proper phobia. I have thought of getting some kind of therapy for it but I haven't found anyone offering such a service and I am not bothered about going to a wildlife park and touching tarantulas etc. I would like not to turn into an insane person when a wasp is near my children though.
Childbirth x2 - by the third one I figured out how to channel it into a sort of roar instead which felt amazing. The second one was a bloody nightmare because I got far enough in that I went - fuck this, I remember this and it gets worse - I'll have the epidural - and then it DIDN'T WORK AT ALL
DH was like "Maybe it is taking the edge off a bit and you just haven't noticed?" 
If I think DC have/are about to do something dangerous - DH always gets annoyed because he thinks I freak them out (I probably do TBF
)
On things like a rope climbing course if it feels like I'm going to fall off. Even though I know I'm attached with a rope it's still an instinctive thing.
When being tickled, if I cannot move away.
Sometimes when surprised - this is very rare but it has definitely happened. Like rollercoasters, I tend to avoid things with jump scares.
Yes to car accidents. Though luckily I've not been in that many. Only one as an adult.
When my dad played a trick on me as a child by cutting a carrot wrapped in kitchen roll, pretending it was his thumb. I saw tiny bits of orange come off and thought they were drops of blood. I can actually remember this really clearly!
I have very, very occasionally screamed in anger/desperation in extreme circumstances. I am not proud of this, because it's a horrible thing to do.
I couldn't do it as a conscious effort either. It's an involuntary reaction. Sometimes when I've screamed, I've burst into tears immediately afterwards too - usually when it's a fear response.
However I am starting to think reading this thread that I am a proper screamy weirdo
(I promise I have never screamed at any chapels!)