Point taken, and I do agree in part.
A red head went into a bar and ordered a BL...the barkeep asked what that was. The redhead said, Duh, Bud Light.
A brunette then went into the bar and ordered a CL...the barkeep again asked what that was. The brunette said, Duh, Coors Light.
A blond then went into the bar and ordered a 13...the barkeep again asked what that was. The blond said, Duh, seven and seven.