Wrong anime then, plain and simple.
Explains plenty.
So you want a serious explanation so you can have a laugh... alright.
This IS a pure comedy show that takes cliche shounen rules as its uhmmm, punch line.
And Scary Movie represents actual creepy misteries and plenty of murders, did you also need logic back then? Did it make sense to you that the guy ejaculated galons of sperm? Did you ask for a pseudo explanation of where he could possibly save all that cum before you could laugh at that part?