The Poop Miss-tery

So, my daughter is an IPT champ. I mean, we've had much quicker progress with her than her brother. Misses are rare in general, but poop misses are like extremely extremely rare. Except...when my mom holds her. And it's not like every time that my mom holds her she poops, because that's certainly not the case. But in probably 3 of the last 4 poop misses we've had (over a span of a couple of