Should say over 360 loads, or thereabouts. Most schools are 180ish days. 270 would be year round school + some weekends.
Also don't think it would be that hard for a teenage boy to do. I'm sure he was probably doing it every day anyway, instead of cleaning up with tissue or whatever, he'd just deposit it into....whatever he drank every day, a juice bottle? Doesn't seem like that much more effort, especially if he feels he's getting revenge out of it.
Why not Egon?
Imagine every atom in your body exploding at the speed of light.
Oh, total Protonic Reversal.
Also don't think it would be that hard for a teenage boy to do. I'm sure he was probably doing it every day anyway, instead of cleaning up with tissue or whatever, he'd just deposit it into....whatever he drank every day, a juice bottle? Doesn't seem like that much more effort, especially if he feels he's getting revenge out of it.