Well, my only "gigs" were in what feels like a pre-historic era for me, but I guess they still count.
Actually, it's a decent tale - and what a punk I used to be.
I was in 8th grade, 14 or 15, and had a band with friends. We played at a variety show, just a song or two, and that went well. We arranged with a teacher to play at a spring dance for our school, but the administration nixed it at the last minute because they already had a DJ booked. About half our class (led by one of our bossier friends, we had nothing to do with it!) staged a protest, leaving the cafeteria during lunch and sitting outside the main office. They compromised and let us play before, not during, the dance. We were as unskilled as you'd guess - I'd never taken a lesson, drummer made up his own beats to any halfway difficult song; but we and our peers thought we sounded good, so ignorance was bliss!
I remember we opened with Pinion and Wish, from NIN's Broken EP. That was really cool for me, being in the spotlight playing my favorite band. (Pinion is a super simple "intro" type song that's just a few power chords, repeating and slowly getting louder and louder.) The drums to Wish were 100% wrong, but the right tempo. I nearly laughed at the on-the-fly lyrical censor the singer made when he screamed "bad luck, fist talk!" (Feel free to Google the real lyrics to Wish...) I'm sure we butchered that song. I can't remember exactly what else we played, but I'm pretty sure it would have been our first two original songs plus a bunch of Nirvana covers - probably Breed, Lithium, Drain You, and/or Heart Shaped Box.
At the time it really felt like the crowd was into it and we were totally rocking out.
Quite a thrill! There were at least a couple pretty girls enjoying it and certainly dozens more of our peers. I'd never heard of action or intonation, and if Kurt Cobain didn't need to learn anything more than power chords, neither did I! The amps were loud and distorted, we had a real live drummer and bassist, we were in the spotlight, and we had a lot of fun.
It was enough of a success that we played at the "graduation dance" two months later, this time *without* having to reach any compromise. Ah, good times.
Sadly, I stopped playing guitar less than a year after all this. But it's been great discovering it all these years later, and doing some things the "right way" this time, so I really wouldn't change any of it.