Sleep deprivation is blamed for a lot these days: daytime drowsiness, difficulty solving problems, lack of creativity, falling asleep on the job, heart problems, cancer, diabetes — even, according to some doctors, obesity and ugliness.

Get ready to add another problem to the list. Not getting enough shut-eye apparently can affect our ethics.

On Leadership’s Jenna McGregor reports on a new study that shows a lack of sleep increased “deviant and unethical behavior.”

“Examples included rudeness, inappropriate responses and attempts to take more money than they’d earned,” wrote McGregor.

Tell us: Has a lack of sleep led you to do anything deviant or unethical at work? Share your experiences in the comments below.