Do we need to treat a kippah with more respect than a normal hat? I frisbeed a couple of kippahs across the room to a friend and he became indignant at me throwing them on the floor.
I remember as kids we were taught to kiss our kippa if it fell off our head before putting it back on, but in Yeshivah I found no such attitude so now I would brush it off if dirty but not kiss it before returning it.
And would it make a difference whether its on your head or not?