Friends of mine had a cat who had got more than slightly overweight cat,so they put him on a strict diet , which had absolutely NO effect . They found out why when Walter (the cat) followed them down to the football club bar one Sunday lunchtime , to be greeted by cries of 'Ooh Its Blacky / Sooty etc etc . Walter was doing the rounds of ANY one he could scrounge food off as soon as he got out of the house !!