When I was 16 I worked at at Taco Bell. I watched an older fellow lose his God damned mind at the kid who made his burrito. He screamed at the kid for putting onions on his bean burrito. Screamed. Once he was done screaming he threw the oniony burrito across the counter at the kid. This was on a Sunday afternoon and dude was in his Sunday best.
From then on I vowed to never be that guy. This was in 1996 I made $4.25 an hour and I assume the kid making the burrito made close to the same.
Something that gives me comfort about that situation now is that dude is probably dead. So fuck him and his onions.