The asshole himself actually wrote:"I once had a server tell me a well-done steak wasn't 'well-done enough.' I asked her if she knew the proper temperature of a well-done steak. She replied, 'I know what they look like! I've been a server for nine months.' So, I popped it in the microwave for three minutes and served a leathery piece of tire. Needless to say, she wasn't tipped from that table."
What kind of childish, unprofessional bullshit is that? It sounds very much as if this asstwat is actually bragging about the fact that in order to vindicate a petty slight, he was willing to rip off a customer who paid for a steak and got "a leathery piece of tire." He's further willing to fuck up the livelihood of the establishment's owner by ensuring customers leave unsatisfied and unlikely to return. All this collateral damage is acceptable in his sullen little mind because a waitress gave him a bit of lip. Fuck a bunch of that.
It took me less than 30 seconds to throw his name and occupation at Google to find out where he's working - I wonder if his boss would appreciate knowing that he deliberately fucks up orders to spite their serving staff. I'm sorely tempted to call the place myself and suggest they look into hiring someone more mature and professional to cook for them.