Edit: Darn, BBS Search doesnt go back far enough
I can't find it, and hate to re-write it....but my scariest ride was when I was invited to fly in a DeHaviland Vampire (British 1950's era jet fighter)...and the guy, as it turned out, only had a few hours in it....and he wasn't having a good day that day.
This is a Vampire...one I flew in had Australian markings

Couldn't find the post so here it is in a nutshell:
I was active with the Civil Air Patrol and was asked to ferry down our new Cessna 172 to the open house/air show down to Owl's Head (small airport with museum on field). My friend Larry went with me, who was a KC-135 pilot.
Got there, walked the flight line and it was largely WW1 era stuff, an F-4U, B-17 and a few other odds n ends. Noticed a jet with a twin tail and singe engine...was checking it out since I hadn't seen one before. The pilot was cleaning the aircraft and we began to chat. He was very interested to see a "military" C-172 so I brought him over to see our underpowered, nose-heavy with redundant radios bird. I told him he had a nice plane and he asked if I wanted to fly the jet with him, as he is in the airshow to make a few high speed passes. SURE!
So...showtime comes and I meet him at the Vampire. Strap in, spool up and wait to taxi. I'm noticing placards all over the cockpit that say things like DO NOT GO TO THIS ## RPM and stuff. Its also really really hot outside, so sitting in a black jet and closing the HUGELY thick plexi on top of us isn't making things any better. With an old jet, high temp/humidity...I'm thinking this little beast is going to use a LOT of runway. Pfftt.....
My host, whom we'll refer to as Einstein, taxi's us out onto the runway and revs the jet up....in the DO NOT GO rpms. I check straps, make sure my feet are clear of obstructions and ejection handles, and prepare for a fun ride.
We barrel down the runway and surprisingly, he yanks the nose up quite soon. Then the nose bobs up, then down, then up....so we are sorta up in the air (ground effect) and Einstein yanks to retract the gear. Mid way thru the gear cycle, we THUD into the runway and are skidding....I see dust, smoke...wings wagging (I'm expecting a cartwheel).....aieee! The tree line is looming ahead and I decide "Thanks for the ride, gotta go" and yank the ejection handles....which simply break off the seat into my hands. Like a dog waiting to get smacked for crapping in the house...I'm waiting for some nasty explosion to shoot my arse through the canopy. In the coolest voice Ive ever heard in my life, Einstein tells me the seats arent armed. GREAT
Somehow, perhaps God's good humor....we get into the air and the landing gear slams shut (with a grind). Hooray! I'm alive!
Now the big question is....is the gear toast? Will it extend? And, those FAA Inspectors on the field are scribbling away like a White House press conference. Larry tells me later that the take off looked like a comet richocheting off the ground!
Again, for the sake of summary...we make a low pass with the gear out, and the folks with binoculars feel everything is ok, make two high speed passes.
Einstein does the first at 400mph and WEEEEEEEEEEEEEEEEEE. He hands me the controls...I drop my ejection handles, and get to do the second, a wee faster, and with the middle finger extended for all to see

Einstein takes over and heads over the water and into what he thinks is a cloud. Umm, no...its fog. I point this out and he breaks out in a clearing...and good grief, we're at under 1,000 ft and diving in on some poor guys fishing. I dunno what was more memorable, their WTF eyes, or mine.
He brings the airplane back to the field, on a long final...and again, he's sitting onthe RPMs the magic placards all say are *bad*. As the plane gets slower and squirley...he comments "this is the part im not so good at". Ugh. But, with a hearty smack...we land...and are greeted by 12 FAA inspectors. Larry slips in, tells me how lucky I am and why didnt i try to get out. I showed him the handles
Last I knew, the guy sold the plane....he asked if I was interested in it for $60k. Nah!
Turns out he had just bought the jet and asides me, also gave a few other people a few good scares.