Guilty as charged. I hate to say this, but I have done it many times over the years. I now move the Tx in the direction of the stick, them compare how the Tx is moving to what I see the control surfaces are doing. I have caught it a couple times now. In my defense, I had the battery for the memory of the Tx die and did not know it. Took me a while to figure out why every time I flew my Ugly stick I had to reverse the ailerons. I was just lucky the other 3 planes had no reversing on them.
Brother calls me the reversed aileron King!!. So When in doubt I have him check it.
Buzz.