I found this in a kids' book that the doctor gave us for free. It's kinda a carpy book aside from this page, so I see why someone donated a huge amount to local doctors to give away. (I think Scholastic couldn't sell any copies and gave away the entire print run.)
The best thing is the text that goes with it, in both English and Spanish:
"Well? How's that poo-poo coming along?"
Funny enough in and of itself, but the Spanish is:
"Que? Llega o no llega esta caca?"
And it translates as (and I'm not making this up):
"This s**t comes or does not come?"