Two spring to mind:
1) 'A' Mango to a remote bush camp to improve a russian oligarchs breakfast experience
2) an old fella turned up for a flight with a goat and we informed him that we were not authorised to carry live animals....by the time we had dealt with the other freight and came back, the goat had duly been slaughtered and was lying in a pool of its own blood and the old guy asked 'can I take it now bwana'
- well we put a plastic sheet on the floor of the cargo pod and off we went