*Checks bag at RP gate*
RP: You corporal or sergeant?
Boy: Sergeant...
*RP looks in amazement*
RP: Nights out ar??
Boy: Erm... no stay out...
RP: OoOoohhhh...
*Boy starts to feel uncomfortable, grabs bag and starts moving away*
RP: Diploma??
Boy: Err... A'Levels...
RP: OoOooohhh....
*Boy starts wondering whether too much guard duty drives people nuts*