We don't have a problem with the neighbours feeding Freddie, in fact they have stopped speaking to us altogether, it seems! However, sometimes on walks we see friendly dog owners with treats for their dogs who offer to Freddie without asking (and of course it would be rude of him to refuse!!) - he also has a sensitive tum. When other dogs come to me for a piece of my tuna bread I always ask the owner first. One day he found a load of burger buns that had been tossed over some-one's back fence after a BBQ, presumably. I didn't know what he had found at first until he had snaffled 2! I picked the rest up and put them in a bin. I guess they were there for the birds but I think they should have been left in the garden.