Best one i got was a polish lad who left a rental and done a bunk, the agent and landlrd said just to leave what was on the inventory, I ended up with 3 flat screed LCD TVs 34", 2 DAB digi radios, and 200 sheets of raw perspex. I confirmed all ok to take with LL and agent, so waved my cleaning fee, got £1000 for the perspex 2 Tvs and one DAB radio. I sold the perspex back to the company they polish guy worked for he had been skimming it from them and they got it back at 1/2 retail price.
Also, got this guy who kept phone me and saying to go get hen eggs from him. 24 eggs twice a week. In exchange he had 2 rental flats he wanted carpets cleaned free every 6 months. i worked a deal with the local shop and was getting £1 per case for eggs (£240) per year.
That was ok eh?