Thanks for the advice folks, all except from Gargle of course. Dunno what he was smoking at the time, but I hope he doesn't blow any of it in the dog's face!!!

Akenton. Sorry if I fell into the trap of generalising over racing greyhound owners. I'm sure the majority look after their dogs well. But the thought that even a minority have the dogs put down as soon they're too old to race is appalling, and something I find difficult to handle.

Anyway, on the strength of what I've been told, here and elsewhere, I'll definitely be going ahead and rehoming one.