Okay,...guess I hafta confess mine as well...
Got my PPL about 8 years ago, and haven't really flown since. Did my BFR last month and did surprisingly well (*almost* "like riding a bicycle again")...and apparently I got cocky because of it...
So I went solo a few days later, flew around the area to get a "feel" for flying again....and it was about time to go home.....and there I am, on final for 29, all happy....slightly breezy, around 10 knots from 310, I decide to go for only 10 flaps in a 172, stay a little fast because of the crosswind.....and because I felt that "I know how to land an airplane, sheesh!", I didn't really pay attention to my airspeed....about 80knots...
Flare, and wait for airspeed to bleed off, and then the reality hits me...I'm still at 20' AGL, and half of the 3000' runway is behind me....so I did the UTMOST, NEVER-DO rookie maneuver...nosed down..I still don't know what prompted me to do that... Needless to say, I yanked up JUST as the right wheel SLAMMED the runway and I bounced back up. Immediately informed the airspace that I'm going around, wondering if I'd left part of the airplane bouncing along the runway as I left it.
I was never so angry and embarrased at myself for doing what I did, went home and went over my nearly-hazardous mistakes. My biggest lesson was: the airplane isn't a bicycle....operate it, or it will operate you.