4 Answers

Did a bungee jump in 1994, NEVER AGAIN.

Always wanted to skydive, never had the opportunity though.

WHAT!!! Jump out of a perfectly good airplane on purpose? You're kidding!

Never have and probably never will, unless my youngest son suggests taking me.  His dad took the dive on his 60th birthday and invited our sons to go with him.  Eldest one politely declined (are you f'g nuts?), the middle one had an injury that prevents sky diving as well as scuba diving (which he enjoyed).
My youngest was 18 and loved it.  A few years later he took a girlfriend with him for a second jump (and she loved it, too).  It scares me to even think about it, but under supervised (team jump) conditions, I'd do it. 

I was actually thinking about this yesterday...not the tragedy but of jumping with a working parachute from a plane and if I absolutely had to and there was just no other way of disembarking the craft and everyone else had to go too...well hell's bells...GERONIMO!!!!