Ooh! Ooh! Apostrophes. Pet peeve! Internet spellings - we've been down this road before. Or was that b4? EXACTLY what I hate. Computers that think they know which window I want to see without my telling them, or try and correct what I've typed- I don't need any half-arsed little computer programmer correcting my typing, damnit! If I make a mistake, leave it that way! I probably intended it. Oh, and the new fashion of highlighting an entire word, or line, or paragraph, when I click on text - I just want to move my goddamn cursor. That used to be what the mouse was FOR.
GMT: I'm with you on most of those, especially people who don't signal, but the hand brake one must be a British thing. Americans don't use the handbrake for that, in fact, we're taught not to, or at least, I was taught not to a few years ago in driver's ed.) It wears out the brake so it's not as effective in emergency situations. We generally refer to it as the 'parking brake' anyway.