No shit, Sherlock?
Dunno about that.
Alf gets the strong whiff of something fabricated in a hurry when he reads that a truck driver caught smoking cannabis behind the wheel of a 40-tonne dangerous goods truck says he took the drug to ease constipation.
According to a report at Stuff, this bloke was picked up by police in Blenheim after other motorists allegedly saw him using a bong while driving the rig down State Highway 1 in October.
Alf must confess he had not come across a bong before, and had to get Mrs Grumble to look it up. She tells him that among things, a bong is a water pipe for smoking marijuana, which explains why Alf is utterly unfamiliar with the word.