Is it 3 strikes and I am out?

First topic message reminder :

Srike one: Tearing a hole in my roof material.
Strike two: Clipping tailgate with king pin, No Damage.
Strike three: Getting my Cat ready for storeage and hooking up. I put the tailgate down, backed up to the truck right on the hitch plate. Put the locking pin in the bar. Hooked up the saftey wire. Put tailgate up and pluged wiring harness in.
All stablizers are up, blocks are moved out of way, lights working, steps up, antenna down, Shore cable removed and stowed away. Ok move truck and cat, check breaks everything fine. Take pictures of the truck and camper. Lighting is bad move camper again. Good lighting, nice picture, back rig out of the way, BAM!
Cat came off of the plate. Slamed down on back of truck and took out the tailgate, the box and who knows what else. Can't move truck from cat yet.
Now waiting for the insurance company and the body shop to call. May have to give up RVing, wait till the wife finds out. Last thing she said was be carefull with the camper, then she went to work. I give up!

It doesn't take up much room at all. It looks like it came with the hitch and I have more weight for winter driving, lol.

My hitch has a padlock on the latch handle, I will not move trailer without lock in place, Also I check jaws every time before I close tailgate. Also I drive truck for a living and checking 5th wheel is top priority.