Tongue piercing + oral sex = lice in mouth

[snopes]

Comment: Recent rumor heard in High School sex ed. class-

A student (girl) recently had her tongue pierced. It was getting very
badly infected and becoming more and more swollen- to the point that she
could hardly swallow. Eventually the girl went to the emergency room to
have it looked at. The doctor pulled out the tongue ring and there was a
pubic hair wound around it. As they pulled it out, her entire mouth began
to fill up with pubic lice that were pouring out of the hole.

This was heard in Prescott, AZ from an actual sex-ed teacher.