Birthday? Mirthday!

A man walked into work on Monday with a black eye. His boss asked what happened.
The man said, "I was sitting behind a big woman at church. When we stood up to sing hymns, I noticed that her dress was caught in her crack, so I pulled it out. She turned around and glared at me."
"Where did you get the shiner?" the boss asked.
"Well," the man said, "I figured she didn't want it out, so I pushed it back in."