The equipment manager at my college was a buddy of mine, and the baseball team had an awesome pitching machine with a huge hopper on top. Practical jokes were how we passed the time, so we'd lure friends into one of the gymnasiums, and then pelt them with tennis balls at full speed. Extra points if you hit them in the nuts. Thar's how it started. Then we found a long extension cord, and would set that machine up all over campus. If there was an outlet available, you were not safe. It was a lot like Jackass, before Jackass was a thing.
We waited outside of a friend's dorm room with the machine ready to go. Surprisingly people walked right by without asking what we were doing. We waited patiently until he left his room for food, and then we unleashed on him like Arnold with the Minigun in T2. We must've hit him with 50 tennis balls going 100mph down the corridor. I never laughed so hard in my life.
Goddamn those were better times.
What were you asking?