Sign spotting

Whilst ordering food from a local burger joint today, I noticed the menu.  You astute observers might know where I was, and what my next question was to the man taking my order...

Is there a reason you call the combos, "cambos?"  Perhaps it's a kitchy nickname long preserved in the burger joint's reputation, I postured.  The man shifted uncomfortably and then laughed, answering finally that it was an error with the sign printer.  I couldn't suppress my giggles, as I wondered to myself how in the world the "Cambo" sign was deemed acceptable.

At another fine establishment, the management has gone a step further than the usual "no shirt, no shoes, no service."  They also will not serve you if you lose a bunch of weight and haven't had a chance to buy new clothes yet.