I'm trying to recall my favourite Frank Hovis (on the lavatory, as always) sketch. I remember the one where he was needed a poo... "I was gasping for the lavatory but unfortunately the gents was engaged. When I explained my predicament the landlord said, 'Well Frank, why don't you use the ladies?'. But they wouldn't keep still." Or something. 
He then rushes outside and hails a cab, saying "Taxi, take me to the lavatory", before becoming overwhelmed and poo-ing the back of the cab. It was always tasteful stuff.
