Making extreme diahorrea noises in public toilets
When I'm at work & bored (I work part time while at college in a shitty chain clothes store), I sometimes like to amuse myself in my toilet breaks thusly: I use a cubicle, and when I hear someone come in, I start off by tightening my cheek and letting a little air out to create a rasping, squeaking fart sound. I sometimes follow this up with a louder, wetter sounding fart effect by vibrating my lips.
For the grand finale I go all out, interspersing deafening sopping farts and splatters with groans - sometimes even using the prop of a toilet brush to splash the water in the bowl, thus creating the illusion of diahorrea literally exploding in wet droplets within the porcelain chalice.
For some reason this amuses me greatly, imagining the look of horror on the victim's face, their nose wrinkled in anticipation of the stench a genuine diahorreal attack of such magnitude would no doubt create. So, is this normal?