Since our 5 yr old male cocker spaniel was castrated a year ago he loves eating poo - other dogs’ not his own. We have had him checked out by the vet who says his diet is ok and he has no health conditions. I have tried squirting lemon juice or pepper but this either gets blown away or has made him sick. The only way to stop him at the moment is to keep him on a very short lead & watch his every move - doesn’t make for fun walking! Any ideas / tips please?