American Cousins by Don Coutts

5.30

Two American mafiosi, Gino and Settimo, take refuge in the Glasgow cafe owned by their Scottish/Italian cousin, but he isn't the tough guy they'd expected. Gino and Settimo try to repay Roberto's hospitality by chasing off a debt collector who wants his property, but their strong arm tactics alarm him and he realises they aren't the PR consultants they claimed to be.