Lost load

@rondetto Said

Mick is driving home in County Sligo when he comes up behind a slower moving lorry, he overtakes and pulls alongside, shouting out of his window:-
"Oi, driver, you're losing your load!"
"P!ss off" shouts back the lorry driver.
Mick drops behind and after 5 minutes he pulls alongside again..
"Oi'm not joking, you're really losing your load!"
"That, you thick pratt, is 'cos I'm gritting!!!"