My first concert, front row Cheap Trick when Rick Nelson threw me his bowtie
One of the most energetic concerts I saw was The Police touring zenyata mondata - shit lights, shit sound system - but they kicked ass.
One of the most moving was seeing Carlos Montoya and having the privilage to meet him after the show - he died 6 months later.
Funniest was watching Quiet Riot follow Whitesnake doing the early 80's "we're from LA, colorfull and happy schtick" and getting boo'd.
Oh yeah, partying with Def Leppard in the early eighties after a show in the arena. The drummer (forgot his name now) goes to set up the kit and play in a drunken stupor and gets us all kicked out of the place.
I gotto mention Buddy Guy - man he can sing the blues. I saw him in a very small venue years ago - it was so raw, so blues, so real. I really can't put it into words. It sure gave me some perspective growing up a fan of the British version of it.