Oh! Jem would also know that Pet doesn't really like alcohol too much. He'll always have a beer or a glass or whatever while they're out and social (probably won't even finish it), but anything past that, he has water. He is also his most insistent on people getting a ride home if they've had too much. That's probably the most stubborn Jem has ever seen Pet. (Cuz drunk driving ruined his life :D)