Hagrid: Okay, you can buy anything you need here. Also I got you an owl.
Harry: Where did you get that?
Hagrid: Um, it doesn't matter. Don't worry if it starts foaming from the mouth, but if it bites you, go to the doctor immediately.
Harry: Hagrid, is that man selling weed?
Hagrid: Um, of course not.... *Inches off towards said pot dealer*