The great diaper blowout of last Tuesday
I don't think I'll ever recover from this one. 6-month-old daughter, we're at Target, I change her in the bathroom. Somehow—and I still don't understand the physics—poop made it up her back AND down both legs. I'm standing there with maybe 2 wipes left and she's looking at me like I'm a failure. Had to buy new clothes right there in the store. My wife thought it was hilarious when I got home. I did not.
Wait until she's older and it happens during a playdate at someone else's house. That's the real nightmare scenario.