Well, i'll start with the Toughest catagory:
This was
WHEN i lived in Detroit last year. About 50nm north of Detroit I was flying in my airmobile and i was chasing a Supercruiser friend of mine just having fun. He lead us over to a friends private strip and we had a fun time putting the wheels down on the grass but never commited to stopping
We'll needless to stay that night i could not stop cranium flying (hanger flying at home) over that little strip, and told myself after some practice i will land and taxi back.
So, i knew what my problem was, i was not comfortable using my 48* of flaps yet, but if i could i would surely make it!!! I was only using 40 before.
THE STRIP: about 900' of grass the both ends high and the middle real low, kind of like an archers Bow, but at the approach end directly at the starting point of the 900' were 50' power lines
I soon found a 2000' grass strip that had power lines right at the begining and started to practice with the 48* flaps and then coming to a full stop and pacing of my landing distance. when i was comfy i when back to the short strip.
Well, the day i chose to finally commit there was about 2-4" of fresh snow,
the wheels touched right at the bottom of the strip (HALF WAY) with no bounce

and in an instant i thought my options through. 1.try to take off uphill (4-7* incline) in a fully stalled postion with all that snow or 2. get on the brakes dump the flaps and hope the uphill will stop you!!!
I wish i had the pictures but i chose to slam the brakes and slide for at least 200' before stopping (being careful of wheel chocking) with another 150' or so before hitting barbed fence and bushes and other shit. I hope that story was not to long.