My wife saw this on a sign in a high-school attendance office.

Problem:
The noun is misspelled.

Explanation:
The sign directed the student assistants in the office to pay attention to their responsibilities.

You might have to say this aloud a few times to get it.

The sign writer meant “Duties” when she wrote “Dutties” instead.

I believe that the writer saw nothing wrong with the misspelling, given that “Dutties” was in a one-inch font on the sign.

What’s sad is that this appeared on an official sign in a high school. Either nobody saw the misspelled word, or nobody had the nerve to tell someone in the attendance office about it.

Solution:
“Duties”