Eyes in the Back of Their Head

Somebody once told me that his teacher had eyes in the back of her head.  I told him that was awesome and that he should report that to the National Enquirer or, at the very least, the FBI so that they could know one of their Area 51 captives seems to have escaped.  He told me I was being stupid and walked away.  Some people would rather live in denial than accept the existence of extra-terrestrials in the classroom.