The title to this thread is appropriately named: What did you DO TO YOUR STINGER. Not, what did you do with it or for it, what did you DO to it.
This afternoon, I rashed my LF rim AAAGAIN. How was that even possible? I haven't gotten curb rash in eight months. Here is how it happened (there is always a reason): I was looking in a crowded parking lot for an end stall and finally found one. The car parked next to it was closer than I like, and I was moving to establish as much space between us as possible, and paying more attention to that spacing than to how close I was getting as I turned in. *scrrraaatccchhh* One of the most horrible sounds in the universe. Oh! but I said words (my wife forgave me for assaulting her ears; she felt so bad for me).
I abandoned the shopping excursion at once and drove home swiftly so that I could sand the damned damage down. It was cold out. I lacked patience (done this too many times already!). As far as I know, the damage could have been over already smoothed out previous damage. Heh!
Anyway, you can see the difference that c. fifteen minutes made: it passes the "six foot away" rule. 
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