Someday y'all are gonna have babies and the fear of poop will be forever washed from your mind.
Poop is everywhere. Everything you eat has already been eaten and pooped many times and the natural world will continue this sequence long after you are gone.
The least dangerous poop on the planet is your own. Just before you pooped it, it was a part of you. Getting a little of it on you isn't going to be a problem.
Sometimes people end up taking antibiotics that eliminate the bacteria in their system. It's very painful to live like this, you need the bacteria to properly digest your food. So a traditional nurse's solution is to give them a peanut butter and jelly sandwich with a little poop in it. Eighteen hours later they're magically all better.
Here's an article on a closely related subject (poop transplants) at the NY Times, the nation's leading newspaper:
http://www.nytimes.com/2013/01/17/h...eatment-works-study-finds.html?pagewanted=all
Now, go enjoy your 5x5 and keep your knees together when you're solving in the bathroom.
This reminds me of why I wash my hands after a session scrambling people's cubes at a contest.