A pair of Newfoundlanders, watching TV, saw endless big-budget advertisements for mass-produced American beer.
One Newfie turns to the other and says, "They say that stuff is the biggest seller in the States, but I don't see what the big deal is." So they buy a bottle, pour it into a plain jar and decide to get an expert opinion.
They send a sample to a lab in St. John's to have it analyzed.
A day later, the lab results come back: "Your horse has diabetes."