Angus went for a hearing test and was told that he needed a hearing aid
He was offered a choice of models ranging from the free NHS one to a £2000 hi-tech invisible one
As a parsimonious Scot he chose the NHS one and was presented with a large white earpiece attached with a length of white wire
He asked how long the batteries would last only to be told there are no batteries
So he asked "how does it worrk ?"
well people see the earpiece and the wire then they TALK LOUDER