I've been had.

B: Moooommmmmm

V: Yeah

B: I went poop in my pants.

V: [trying to remain calm and positive] That's okay sweetie, let's get you cleaned up.

...in the bathroom...

B: See mom [as she points to a big bulge in her pants]

V: u...hugh.

And as I pulled down her pants expecting to see something disguisting, I see socks.

B: [laughing uncontrollably] I GOT YOU!

OMG...I've just been had by a four year old!