I had a blind acquaintance who used to make musicians' lives a misery by rattling spoonwise his folded white stick, when he wasn't beating on tin trays with 50p pieces. He was English too- had he been sighted they'd have put his eyes out if not his life, but instead contented themselves with overcharging him for the Guinness. At least he refrained from that sessional hypersolecism of CLAP,CLAP,CLAP-CLAP-CLAP.