Re: tap, tap, tap...
My wife just had spinal disc fusion surgery day before yesterday. I was sitting in her room both before and after the surgery working on my heel/toe technique on the shiny floor. ba-bump ba-bump ba-bump ba-bump ba-bump. The nurses in there tending to her were giving me the look. One kept looking at me like my ba-bump was like raising my hand to ask a question.
I finally just stopped as it seemed to be causing a mild distraction for everybody but me.
"I hear and I forget, I see and I remember. I do and I understand."