Okay. Not in my toilet.
In D.C., the Rodent Control people got a few complaints from people who have rats in their toilets. The rats climbed through the water pipes and ended up in urban home toilets.
It’s actually kind of funny, although I really wouldn’t want it to happen to us.
The rats can get into the sewers from grates in the streets, and from there the rest seems to be simple enough for the disgusting rodents. We actually saw a rat in Philadelphia that was dead on a grate, presumably crushed by a car going by as he was trying to squeeze through.
Click the link at the bottom of this article if you want to see how a rat squeezes through the pipes and manages to come up in your toilet!
This is an article we wrote earlier about rats in Rittenhouse Square, Philadelphia: Rat Hunting
Source (and video): See How Easily A Rat Can Wriggle Up Your Toilet