He pees on the toilet seat!

Okay this isn't about my boyfriend but his brother. His brother is 12, way too old to have to be reprimanded on how to use the toilet correctly. Everytime after he pees their is pee on the seat and even around the toilet on the floor.

How in the hell?

He rarely lifts the seats up like boys are supposed to do. We've gotten onto him everyday about this. He gets a sour attitude and I make him clean it up with some cleaner and a paper towel.

Do I have to start taking away his games/toys if he can't pee right? We can't seem to get it through his head that he needs to lift the seat up and aim! It's like he's trying to make us mad!