lol I totally would.
My boyfriend loves Pokemon as much as I do, and I have a bunch of friends who I battle with in classes (under our desks while we're...doing work.) And at my school, outside and before and after school electronics are allowed out, and no one would question me with a pokeball looking thingy attached to my jeans or whatever, so it'd be easy. I'll definitely do it.
Not even gonna think bout how many people are gonna jack it to battle though. xD