My kid's shit don't stink!

We were at a play date last week when my eldest went to go potty, and he sat there brooding for ages. There were three board books laying conveniently on the floor by the potty and so he read quietly to himself for a while.

He definitely doesn't get this toilet trait from me. I'm an efficient pooper; in and out, done. I don't get why people like to read on the loo. What's the deal with that? I mean, are you reading before you're pooping, or while you poop? Or have you already pooped and you're just stealing a bit of solitary time from the family?