what's so hard to understand here?

I was told by a student last week that the directions for my assignment were "quite unclear." Here are those directions:

"In the text below, circle every main verb."

That's it. The text was immediately below the directions. The word circle tends to mean "enclose in an ink line," right? The term main verb may seem unclear to some people, but those people would likely not be students in a college-level grammar course as was the student who complained. Lastly, every would seem to indicate that the student should not refrain from circling any main verb. What could be clearer? Doing the assignment for the kid, that's what.

What a fucker.