At PHL the ID checkers are the worst at this. Many visits ago, past them, I was really hacked and yelled "STOP BARKING". Everyone thought I was looney.

I will give an OT praise to TSA yesterday, I was rushing out of D to catch SEPTA, the exit lady asked if I was seeking terminal F (which can't be accessed airside after leaving D), I said no, but thanks - nice of her to do more than just be "standing around".