Ok, one of Royal Caribbean's policies is there is not sexual conduct between staff and guests.
So speaking as one with experience in these matters, I can confidently say that it's pretty damn retarded to get caught by security with your pants down to your ankles with a passenger straddling you. Unfortunately one of the dive instructors decided to do a little after hours diving of his own, much to the chagrin of the bridge, which even at night has a perfect view of the helipad, or to his girlfriend, who was working at the casino at the time.
Who hires these people anyway?
So he got to sign off early...Bastard.

PS. Geez Dave, guess you wish you had your dive license already, huh?