How did you start wargaming and when was it the most fun?

[Grand Master Raziel]

Ummm....
I may also own twenty odd kilograms of V:TES cards.

Me too. I got into it back when it was published by WotC and called "Jyhad". Had a friend with a Brujah+Celerity+guns deck that won all the time till I started actually reading my cards. "Canine Horde: Strike, Ranged, Destroy target weapon with First Strike." WHY DON'T I HAVE ALL OF THESE IN MY DECK!

I also spent a considerable part of the 90's playing Live Action WoD games. I was actually part of WW's officially sanctioned global LARP for a while - long enough to have a Gangrel with full Poleritude (and maxed out Protean and Animalism as well). Good times.

My first experience with tabletop wargaming was Mage Knight - Wiz Kid's precursor to Heroclix. Then a friend introduced me to 40K back in 3rd edition. I'm still playing today. Mentoring new players even - I have a group of friends to play with and we do really well with 7th edition with the addition of a few simple house rules.