I worked as a circulation clerk at my college library, often on the closing weekend shifts when only student workers were present.
One especially lazy co-worker would literally sleep through his shift on a library couch. I was disgusted by his slothful unwillingness to contribute to what little had to be done. So, one night, I just let him sleep and closed the library at the appropriate time.
He awoke at midnight and realized that he was inside the locked and presumably alarm-set library. So he called the campus security force to let him out.
Although my boss never mentioned it to me, the next week, he posted a rule saying that workers had to wake sleeping co-workers before closing the library.

My own library director insists that snakes can't be service animals, but I think that you've just found the ultimate rebuttal.

Never.

Just don't make the bounty too high, or you will incentivize people to raise Asian snakeheads.

Thank you.

Oops.