Amazing thread! Very funny to read; not so much if you're one of the abused workers posting.
I was talking to an ex holiday rep once and she is convinced that some people only go away on holiday in order to moan.
Someone behind me in a short line for some orange juice on holiday started moaning that she had to queue , it took all of two minutes to get her drink and the machines did work fairly well. Some people are just hard to please :(
My FIL used to work with a man who deliberately did just that. He invested in a video camera, long before most people had them (and long, long before smartphones) for this specific purpose. He and his wife would book lovely holidays and enjoy them very much, but determined from the moment of booking that he would make sure to find/invent/grossly exaggerate something to cause a big scene about and end up demanding - and getting - a full refund for their 'ruined' holiday. Disgusting.
Another of my FIL's colleagues (must have been something about the place he worked!) lived with his DW in a council house (pre-central heating days). He was so mean that he refused to buy proper firewood and, instead, he actually took up the floorboards upstairs and burnt them - a couple at a time (presumably spacing out the ones he used at first so they could work around the gaps) until, before long, they were ALL gone!! After that, with the upstairs now unusable, he started on the now-redundant stairs and then started eyeing up some of the internal walls.
He went to the council to inform them of the situation and was furious with them for expecting them to live somewhere dangerous and uninhabitable and for their audacity in taking rent for a whole house, of which only the downstairs could be used. He demanded loads of their back-rent be refunded, plus hefty compensation for their inconvenience and restricted use of the house - oh, and a replacement council house for them to move to that was intact and not dangerous!
Thankfully, the council just laughed right in his face, before beginning a prosecution against him for criminal damage of their property!