Ever taken a serious beating?

My question is this: have you ever taken a beating? But more importantly- what did you learn from it? My best lessons don’t come from my victories but from the oooh-what-the-hell-happened-what-day-is-it aftermath. I’m interested in hearing from others what they took from their learning experiences.

Experience arguably being the best teacher, I’ll share a moment of shame from the past.
A few years before I began training in the martial arts I was invited to an underground fight club. It was just a converted house owned by some strip club owner with a ring in the basement. The rules were sparse: you wear (what I now see frequently in the MMA) light gloves and you fight until you’re done- no rounds. You’d get 150 bucks if you win and a foot in the ass if you didn’t.
Sounded like fun, so I went in figuring I’d make a little money. My opponent got cold feet and walked out, so they offered me an alternative: fight three little guys. I’m a big galloot and I’d gotten myself psyched up enough to actually step into the ring, so I went along with it. I’m 320 pounds and 6’1 (no bucket of lard, but not the Soloflex commercial guy by any means) and the heaviest little guy was 140. I didn’t have to fight them all at once, just consecutively, so endurance was going to be an issue.
Surprisingly I put them all away and had some money in my pocket. They offered me one more fight for more money and I agreed without thinking to ask the particulars (idiot me).
The next guy looked to be about 185 pounds- but seriously cut, and had a demeanor of real experience: something I sorely lacked. I was more winded from the previous fight than I had anticipated and he pretty much laughed as I attempted an attack. After dancing me around the ring for a minute or two he finally released the hounds and it was like walking into a buzz saw. Chinribseyechinbackthighthighskyearthskyearthouch.
Once the nasty bucket of water was dumped over me and the bells stopped ringing in my head I was able to take better stock of what happened.
Apparently size doesn’t matter worth a damn if you don’t have anything to back it up. I felt like an 18 wheeler with no rubber. I could make lots of noise but it wasn’t getting me anywhere. It wasn’t too long after that I was searching out fighters with real skill and absorbing every lesson of worth I could get my hands on.
So anyone have anything funny/tragic they’d like to share?

The first rule of fight club is, you don’t post about fight club.

And the second rule of fight club is, you don’t post about fake… er… fight club.

More times than I can count.

Ouch. Straight into trollshido. Never mind.