Things that piss me off:
Seeing someone sitting at a traffic light, on their phone, with about 50 foot distance between their car and the car in front of them. Or being first car at the light and being a good 50 feet back from the intersection.
I hate those people.
Don't be one of those people.
They booger up entire traffic patterns and in city with perpetual traffic congestion are a nuisance to society.