I hate when people don't use cell phones in a polite and responsible manner, especially while driving.
As for people who damage other's stuff, here is what I posted a while ago in the general forum in response to someone who got their car badly dented in a praking lot:
I know how having inconsiderate ass-holes tear you car up feels. I'm generally a nice person, but I remember one time when I had my Chrysler that I turned not so nice. I was parked in a Wal-mart lot near the very end because I didn't want anybody parking near my car. (most of the people around here drive trashed cars and I've seen them hit other cars way too many times for my comfort) Just as I go to get out, this lowered Chevy truck pulls in right next to me and way too close to me, as if they didn't have the entire rest of the lot to park in. This 300 pound lady gets out of the passengers side, and while doing so basically slams her door into mine. I cringe, get out, and say to the guy driving the truck, you just dented my car buddy. He's like, dude it's just a Chrysler, it's not a big deal. Mind you my car is a top of the line Lebaron GTC that is only a couple years old, and his car is a 7 year old S-10. I'm like, I don't care what kind of car it is, you still dented it. He's like, well too bad, [censored] happens. So he goes into the store, I'm sitting there looking at my dent. Then as I get into my car to leave, the wind caught my door and flung it into the side of the bed of his truck leaving a 15" tall crescent shaped dent between the wheel arch and the cab.