Continuity: When Vic and Josh are urinating on the slate, Vic holds it in front of him and the writing on it is perfectly legible, but when it shows him holding it out, it is runny and you can't read it.

Continuity: When the thumbs are in the car driving to the woods, in some shots their thumbs are out of their shirt a lot, but in other shots, they're in there all the way.