Sum dirty old men do it too... 
What perversion.... How do you derive pleasures from
seeing gals peeing and shit-ting.... Do you even peep at your own
mother or sis when they are in the toilet?...
4 some ppl, there's the (admittedly twisted) thrill of seeing
something you have no right to see... Couple that with the imagery
that goes on in their heads and mi guess that's how they get their
kicks... 
