Little Potty Chair (no more?)

Well, we packed up the car (potty chair, too) and then ask Evie to pee one last time before we hit the road.
Evie runs to the bathroom yelling, "K!" behind her as I hear her race by creating a doppler effect.
Rob yells again, "And go poo-poo!" because, apparently, she's farting up a storm and needs to do that, too.
Moments later (literally, like maybe 10 seconds later) I hear, "Mommy! I go poo-poo on the potty!"
And well, she did.
I don't know if I'm impressed that Rob's got this kid potty-trained to poop on command or annoyed that we cleaned a little plastic potty chair to travel out-of-state with us (and, apparently, she doesn't need it anymore!).