You can always tell a Marine...

Rico says his friend Tex (a former Marine, of course) sends this:

A question from the career placement test given applicants for a military technical school: 

"Rearrange the letters 'P N E S I' to spell out an important part of human body that is more useful when erect!"

Those who spelled 'spine' got the Air Force or Navy school of their choice, and the rest of us were sent to the Marine Corps.