Two years ago, traveling down I-70 on a Sunday night loaded with two 61" Scag Turf Tigers on the tandem. Going about 60 mph at the time. It was dark, about 10pm, not a lot of drivers on the road, making my way to storage right over a major bridge here in Kansas City looking for my Manchester exit. This is a pretty good size bridge where if you went over the edge...that's it. You know where this is headed, don't ya? Right about the halfway point of the bridge I feel this 'BAM..BAM...BAM" to the back of my GMC! It felt like a big oak tree was a battering ram to my truck! The trailer hitch had jumped the ball and the chains were pulling the tongue hard against my pickup tailgate in an effort to ram a hole through it. Both Tigers slammed hard against the back gate or I'd have spilled those mowers all over I-70 in the darkness, sure to cause head-on calamity! Only saving grace...one lone chain holding the trailer from me and sure destruction. I would've been lead story that night on the evening news. The other safety chain broke. I did my best Jeff Gordon to keep that truck and trailer from doing a dive over the safety rail. Slowed the truck and trailer down, parked it best I could to the short lip just a foot or two from highway traffic. Next problem, the impact pulled the trailer lights out of the socket and I'm sitting there on a major highway with no lights to a trailer so close to the highway, just one wrong move by a driver and he's right into the back of my trailer sight unseen! I immediately got on my Turf Tigers and turned on my halogen lights that both mowers had, parked them on the lip of the road showcasing the trailer to the drivers until I could load again. Lifted the hitch on the ball, then the mowers on the trailer. Drove real slow to the exit just about 25 ft. away and made it to storage. A little frazzled, but alive!