I haven't had any myself (yet, knock on wood) but my dear late husband had one big one I have to share. The whole trip was one big boner after another.
I have always had vintage campers, my first was a 12 foot '69 Santa Fe that I bought when we moved to Seward, Alaska.
My husband and his buddy decided they wanted to go moose hunting and take my little camper. Buddy had a big old truck and seemed more knowledgable than my hubby so I said ok. (My husband, bless his heart, was a great guy but just not the outdoor handyman type at all) I warned them, what ever you do don't leave the keys inside the camper, it has a tendancy to lock automatically if you slam the door and you will be locked out.
So off they went, drove to Tok, Alaska to go moose hunting. They told me if I don't hear from them by 11am on Saturday to call the police to search for them. (they were both Coast Guard so took this very seriously as they search for missing people all the time)
Sat comes around and it's 11am, no word from them. I know them, I know they just are getting a late start etc. so I wait. I wait till 1pm and still no word. Finally I call the state police and tell them where to start looking for them.
At 2:30 I finally get a call saying they are on the road, got a late start, had a few mishaps but all is ok and they will tell me about it when they get home.
So I call the police and tell them to call off the search which they do.
The guys arrive home and come to find out...they had left the keys in the camper and it locked them out at night. So they had to decide to break a window or the lock to get in (they broke the lock).
Then when it came to leave they over slept, quickly packed up and headed home. They were doing about 70 on the highway when all of a sudden the trailer comes off the hitch. Luckily they had the chains on but the pole (whose actual technical name escapes me now) was down low enough to drag the highway. Sparks were flying as it dug a 1 inch groove into the road until they could safely stop. It melted the end of the pole of course.
I was so mad (especially about having to call the police) that I chased them both around the yard for a bit.
We drove that little camper to Juneau, took it on the ferry. Sold it. Moved to Anchorage where I bought a '57 Shasta. Hubby got a little handier over the years and here it is dipnetting in Soldotna back in 2010.
Bought a '04 Jayco last summer after moving back home to OK to be close to family and am having to learn how to tow something much bigger and use all the plumbing and stuff I never had to do before. But very glad to be back out camping with my kids. Their dad loved to camp and I am sure he is smiling from above to.