top decker - a "prank" in which one leaves a bm in the tank or cistern of a toilet rather than the bowl.

Oh!

Blimey. The lengths people will go to, eh?

Yup.

Balance plays a key role in planting a 'decker.

One that I have used at least three times is a "dry dock".
You turn the water off at the valve under the tank, plant the "object", and leave. It works good at Sears if you leave the "gift" in a toolbox or a ShopVac, then put it back out on the shelf. That'll learn ya to always check something when you buy it.

Seriously? You've done that three times? Taken a dump in a Sears and hidden it in a toolbox or something?

What is wrong with you?! There is nothing funny about that.

Yes there is.
You just need a warped sense of humor.

And zero empathy.

That's not warped. That's broken.

What you have done is made life harder for the person who had to clean up your shit and you've ruined property that didn't belong to you.

Meiso--Im sorry,I've re-read the post several times and I cant seem to find exactly why the wall was so moldy? IMO if you have mold that heavy on your wall,cleaning it and putting some primer over it will not make everything 'A ok'. There must be an underlying cause...perhaps a leaky roof? Maybe an issue with plumbing? Possibly inadequate vetilation in a high moisture area i.e.the bathroom? In addition if you saw that amount of mold on the outside of your drywall then the drywall that you cant see must be damaged and full of spores. If you own your home I would investigate further before you put the moldy wall to the back of your mind, mold is nothing you want to play around with. As Im sure most people know it can make you extremely ill and prolonged exposure to many types can be fatal.