Ruff Night:

A man wakes up one day after a long night of heavy
partying.
The man remembers absolutely nothing about the night before.
He goes to the bathroom and finds two rings on his dick. One is red, the otheris brown!
He has never seen these marks before, so he decides to go to the doctor.

A few days later, the doctor calls the man with the test results.
"I've gotten the results back, and I have some good news, and some not-so-good news." the doctor says.

"Well what's the good news?" the man asks.

"That red ring, it turned out to be lipstick."

"Whew! Well, what's the not-so-good news?"

"The brown ring was Copenhagen!