Drivers who drive very fast on streets while there are large piles of snow mixed with dirt and other shirt, or streets with large puddles of water.
I remember this douchebag, hopefully nobody on RS, who drove his FR-S really fast on a downtown Vancouver street. His car went through a puddle really quickly while I was walking down a sidewalk which was beside the puddle.
-entire pants was wet from the puddle even as I tried to quickly move away from the puddle before that FR-S drove through it.
Co-worker was covered in snow mixed with who knows what after a bus driver drove quickly through a pile of melting snow. Again, she was walking on the sidewalk. I wanted to laugh at her misfortune but something similar happened to me with the rain puddle.
No driver courtesy!