I don't know biggest, but people who drive with their high beams on in bumper to bumper traffic on a dark night. I understand I can move my rear view mirror, and fold in my side mirror, but I shouldn't have to. The blinding light is dangerous to drivers it affects, and offers no help to the driver who can clearly see my car just inches in front of them!
I dunno if I’d say this is still the biggest because I don’t often need to shake a lot of hands anymore, but one of the biggest is when a short alpha male shakes my hand (I have to figure this happens to a lot of big guys) they often aggressively squeeze too early on the fingertips so as not to give you a chance to get a real grip on their hand. It makes you feel like you’ve given a ladylike handshake but really they’re just too afraid to let you get a real grip. I just have to shake my head, wipe the fearstain off my hand and keep movin. It’s super repulsive. If it happens again I’m either gonna confront them or curtsy, not sure which.
@BohoHeathen you mean they do that when shaking a woman’s hand too or you just recognize the other similar napoleonic traits? Yeah it’s pretty pathetic.
I have had 'crushing' hand shakes before...not pleasant and hard not to wince. Guys sometimes have no idea how to distinguish firm handshake from bone crunching...ha.
Littering.