This is about one of the most bizarre things I have ever witnessed. A few days ago I was dusting and found a small piece of poop balled up, against the wall. I thought maybe my son had an accident and didn't think much of it.. until today. As I walked into his room, I noticed the reek of feces. He had a small collection of rolled up poop hidden behind the curtains and sitting in a perfect row on his window sill! Is it normal for kids to do something this disgusting??

Mum/Dad, if you're worried, talk to your son's pedatrician. But I'm guessing he'll probably grow out of it in a few months. No need to overmedicalise him, that may just produce more anxiety which may be the basis of future strange behaviour.
Hope this helps :)
P.S. I know this is an old story. :P
And according to iq tests I'm a genius (for whatever that counts for)...So I'm assuming I was bored as a kid and found a medium to make stuff with.
I'd hand him some new stuff and let him create whatever. I'd look at that as a good sign.