I bungee-jumped once.
Hated it.
Really hated it. It wasn't so much the jumping as the bouncing and flailing about afterwards. Well actually, it was the jumping, too. I remember the guy doing the "count backwards from three" about 5 times before I actually stepped off the edge. I really did not want to do it. But the only option was backing out, and well, that really was NOT an option. (I'd shot my mouth off pretty hard about the whole thing about 2 hours before.)
I was really suprised at how fast I was falling. For some reason I thought I would fall in slow motion or something. I didn't scream, but I'm not really a screamer, more of a moaner (Shut. Up.). I moaned that panicky "Huh-oh-Unhhhhhh" sound as I dangled on those strands of elastic and bounced for entirely too long. I didn't have contacts back then and I couldn't wear my glasses since they would fly off, so the horrible part was the blurry-blind disorientation.
Well...that, and hearing my wiser, still-on-the-ground friends below, laughing their asses off.
On the elevator ride down from the jump platform (they reeled you back up after you jumped) there was a little boy who was very upset and crying because he chickened out. I kneeled down and told him "Don't you feel bad, I didn't want to do it and did it anyway, and I didn't like it at all. I wish I'd chickened out."
Looking back, that probably wasn't a good lesson to teach. For all I know the poor boy let fear rule him for years to come. But I hope at that moment it made him feel better, that it was okay to go with your instinct. I mean, who jumps off a perfectly good building anyway? It's not natural.
As far as sky-diving....No Way.
Nope. I don't even think I'd do a tandem jump with Reeves if the opportunity presented itself. And that's saying a lot.

Have you ever jumped out of a plane? Para-sailed? Bungee-jumped?
Did it suck?

If I remember correctly, didn't Keanu actually learn to sky-dive for Point Break?
I like that movie, it lets me get my adrenaline rush vicariously.
Which is just fine.

Now, fast cars? That's a whole different story.