I had this interesting encounter over the break. I was at a Christmas Eve service at my church and I was greeting a friend of mine. Now I thought we were at that level of familiarity where it was okay to hug, but then it got weird. He went for a high five, I went for a hug, and long story short, we ended up doing the arm-worm, like two kids at a club who forgot they could use their legs to do that dancing thing.