Of course Justin Bieber treats his own grandpa like this.

Justin Bieber’s grandfather is a saint.

His famous punk of a punk-ass grandson is just getting about in the world, drag-racing cars while he’s high, comparing himself to Princess Diana, trying to grow a beard for the first time… Oh, and making “music” when he’s not too busy with the above activities.

And then, when he’s trying to catch some rays in his backyard one day… THIS HAPPENS:

Are we surprised that Justin Bieber treats his grandfather’s head as a launch pad for his basketball?

Nup. Nah. It’s the most Justin Bieber thing Justin Bieber has done today.