Cleaning the donation rooms at a sperm bank. I imagine the cleaners put on one of those hazmat suits that scientists at the CDC wear when they're handling diseases. You know, the suits you sometimes see in movies with the air hoses in the back?
"Oh god, why can't they ever make it in the cup on the first try?"
"What the...how'd they get it on the ceiling?!"
"I knew I should never have gone to ITT Tech."