A coach driver was taking a bus of deaf and dumb holiday makers on a day trip and stops at a pub so everyone can have a drink and use the toilets etc.
Everyone is not too bothered about leaving and start to buy shorts and get a bit pissed.
The coach driver though is on a timetable and needs to get them back on the bus when he notices all his passengers are opening and closing their mouths in unison.
"Sod it" he moans to the barman "We'll never get them out of here now. They've started singing."