I have this one female customer who works in an OB clinic and we have this routine each time I make a delivery. I will hand her the DIAD and she'll say "Good morning, handsome, how are you today?" to which I'll reply, "Much better now that I have seen you" and it puts a smile on both of our faces and doesn't cross any lines. Friday she asked me to wait a second and came back with a cup full of M&Ms and, as I was thanking her, she asked if I knew what the green ones represented and I just smiled slyly. It's all in good fun.