People who worked in hospitality, what are/were your 'guests from hell/heaven' stories?

Was myself from the hospitality industry, but in the kitchen side. I've been lucky/unlucky to not have much memorable stories, but working in the buffet line I just had your typical 'auntie who ask for extra portions(I do roasted meat and serve them) '

I did served Kenneth jeyaretnam of reform party once, and I was like 'wait you're kenneth jeyaretnam right?' And he gave me his namecard.

I did remembered this tall Caucasian dude with his girlfriend and we chatted and at some point he joked about 'men don't think with their brains but their dicks' (forgot what the context was but I lol'd)