Alright Guys, as much talk as there is on here about the Johnson bar reliability, I am wondering if any other Johnson Bar fliers have had this happen before. First off, I am a 250 hr. non-IFR pilot with 175 of those hrs. in my 65' M20E. I love my E and I love the johnson bar. This past Sat., My father and I flew over to a local car swap meet a mere 30 miles away, when we left out that afternoon, I was performing a normal takeoff when the unexpected happened. I reached up, unlatched the handle and commenced to folding it to the floor when the chrome handle flew off and ended up in the back seat. Now you can imagine my surprise to see the johnson bar just dangling mid way with no handle. Luckily my father (also a pilot) reached back and grabbed the spring and shoved it back into the handle and was able to slide it back on the bar and I lock it in the floor. I know, hind sight tells me we should have locked it in the gear down position but everything happened so fast. Now for the short 15 min. flight home I had to wonder what was going to happen when I got ready to put the gear down. Was the handle going to fully latch? Was I going to have to make the dreadful belly landing? Well, the gear went down and the handle latch held, and trust me, right up to touching the ground I have given the bar many tugs and fingernail test along with a racing heart rate. Once taxied and stopped at the hanger and shut down, I found what looked like a dowel pin laying on the floor covered in grease. My A&P is supposed to be putting it up on jacks today to determined just what happened. Just wanted to see if any of you guys have experienced this before or am I the first to ever have this problem with the fail safe johnson bar. On a side note, I am grateful that my father was with me, had this happen to me while I was by myself, I'm not sure if the calm atmosphere would have been the same.