Women complain about how they're jealous of men for the convenience of peeing while standing up.  But men will never know the delight of the surprise when you sit down to go pee, and all of a sudden you realize a poop is coming out.  

To men, pooping is a scheduled event - you have to make the decision to sit instead of stand; you have to have a plan of attack when you enter the bathroom. In fact, I bet many men have rarely ever experience the poop/pee simulcast in their lives.

Thanks to Leaf Dude for this.