Oh no it isnt...
Are you calling me a liar, punk? Do ya wanna fight? *rolls up sleeves*
I think customer service probably tops all else.
I've been lied to a million times, spit at, robbed, fought, had my coworkers bashed over the head and beaten unconcious, dealt with dead bodies, been caught in crossfire between cops and fugitives, met half the homeless population (one who carried their chickens with her), had to carry an old woman who fell and broke her leg, cleaned up after suicides, cleaned up after children vomiting, cleaned up after asking drunks to please put their wangs back in their pants and stop pissing everywhere, had poisonous snakes in the hallways, tried to salvage from when people flood a toilet and it comes through three floors... Seen women beat men into a pulp, vice versa, seen animals starved to death.
Day before yesterday I had to go rescue the cutest baby frog that had found his way inside, making the women scream.
Never a dull moment. Customer service!