Yup. Last Thursday I watched a co-worker grit his teeth in pain when someone came up and gave him a friendly slap on the shoulder that had just undergone rotato

Yup. Last Thursday I watched a co-worker grit his teeth in pain when someone came up and gave him a friendly slap on the shoulder that had just undergone rotator cuff surgery. I personally give big, hearty hugs; but only to people I massage or spar with.