I worked in a road construction shop for a short time during a college summer (I quit and got a job as a marine mechanic a few weeks later, every single aspect was better).My coworker.... what a tool.
Anyhow worked with another kid who had already been there a year who was the "expert" on everything. Not a terrible dude but would get really rammy when he was crabby or in a hurry. One evening he was all pissed off and slammed a trailer ramp across my foot then proceeded to do a really ****** job rigging up a "pad" of timbers and the whole damn thing fell down right in front of us. I kept my distance from his escapades after that especially when I could tell he was in a mood.