Thudding blunders
Many moons ago in R22 days I settled into the cockpit after stopping for a leak during a nav on a very chilly day. I pulled lots of carby heat and watching for the needle to come up before sitting up and realising I was off the ground. I reached for the lever and couldn't get my hand on it (the lever) while elevating much more rapidly so I concentrated on not going any further backwards before I worked out that I had my sleeve caught on the governer switch. A quick movement had me descending to a surpringly benign touchdown (either that or brain overload was coming into play) as another trip to the loo was in order.
Ever since when I've had to wear long sleeves they've been neat fitting or velcro'd up so they bunched near the thumb.