The worst one I ever had (and OK, more fool me for agreeing to it I suppose) was with some Golden Retriever puppies where I agreed to meet someone at a Tescos about two hours away from where I lived. I was also to deliver another puppy on the way back so at least there were two to go. I turned up at Tescos at the agreed location and waited and waited and waited, phoned the lady's house several times, no reply but left messages on the answerphone, didn't have a mobile number for her. She wasn't coming very far and eventually I was forced to conclude that she had just let me down. I think I waited about 90 minutes for her. She knew it was a two hour drive for me and I thought it was just possible that something had gone horribly wrong and that eventually she would phone me at home and apologise profusely, but no, just another time waster
Liz