Three new recruits were being tested looking at a mug shot. The instructor asks the first recruit what he noticed. The recruit responded, "He had only one eye."

The instructor reminded the recruit that this was a side profile shot. He then asks recruit #2. Recruit #2 indicated that he had only one ear.

Frustrated the inspector goes to recruit #3, who replied that the guy in the mug shot was wearing contact lenses.

The inspector checked his notes and noticed the guy in the mug shot wore contact lens. "How did you know that?" he ask recruit #3.

"Well, he had to be wearing contact lens. There was no way that a guy with one eye and one ear could wear glasses."