Donate What?

This coming week we will be having a blood drive at school, so there are posters all around the school that say "Donate Blood." One of my miscreants felt that they needed to be a little more eye-catching, so they went around the school, and on every single poster, crossed out "blood" and wrote "sperm." The problem? They spelled it "sprem." So every poster says "Donate Sprem." Nice. So one of the English teachers typed up a small paragraph that said "The word is "SPERM." If you are going to deface public property, at least spell the words correctly." If you guessed that the teacher got in trouble, not the student, you'd be right.....