Well, I'm a real virago behind a wheel sometimes.
If I'm a bit late and hurried I'm ready to swear everyone who drives in front of me slower than the speed limit allows you to drive.
If I'm not hurried (and in general anyway) I'm vexed if I'm driving the highest allowed speed and then someone tailgates me. Like this one car few weeks ago. I drove around 60 km/h and the road was pretty icy - and then this car behind me left perhaps 3m between us two. It didn't try to pass me or anything, it just tailgated me. I'm not going to drive overspeed because of these cars anyway so they will won nothing with that, execpt perhaps a liability to pay the damages of my (daddy's) car if I have to brake suddenly.
(In general, I have milder attitude towards driving slower than speeding even I have to admit I often exceed the speed limit a bit too. Not badly, I guess around 3-5 kmph but it's still speeding and I'm not proud of it
Then some other of my pet peeves are
Rudeness and people who can't consider other people
Feeling of insecurity
And other things like that. Actually when I started to think I noticed there aren't a lot of things that really peeve me.