You know in Dumb and Dumber when Lloyd gives Harry the laxative and Harry destroys the toilet before his hot date with Mary Swanson? Ya, you just took a Harry.
Taking a Harry:
I just took a Harry. I totally Harry'd in the bathroom. Don't go in there, I just Harry'd your toilet.
If you don't want to come clean, just say,"Don't come in, I'm shaving."