Insecurity

 Think about it. If someone stole your stuff and you noticed, you would report it to the local police and the campground, then there would be police asking all the other campers if they saw anyone near your area. It would make it very difficult for another camper staying at the campground to get away clean with that kind of theft.

 I have had my car broken into, and some valuable items stolen from me at a job I used to have. Both experiences left me angry and upset. In my mind, none of my stuff was worth stealing since it only had value to me, but it had some monetary value for the pot-heads that needed cash they could get at a pawn shop for the car stereo and the voltmeter that were stolen.

 I learned to let it go, it's just stuff. I can afford to replace a few hundred dollars of camping crap. I don't take the family jewels with me when camping (well actually, I do carry those with me, but no one want them).

I replaced all my 751 locks with cam barrels using the same key that opens the door.  Very convenient to only have to use one key.  I also put cable locks around spare tire (has prevented one theft) and propane tanks and added hitch locks.  More importantly, I mounted a security box inside my RP178 under the dinette, with bolts that go through the floor.  If we need to leave something truly valuable like a purse or a laptop, it goes in there.  The box I bought is available at:

https://www.tuffyproducts.com/p-256-laptop-computer-security-lockbox.aspx

I agree with other comments that stuff like lawn chairs aren't too expensive to replace, but:

-- there's a lot of inconvenience.  It took trips to three RV stores to replace the spare tire cover that got thrown away by the thieves that wanted to steal the spare tire.

-- I know I and my wife would feel a sense of violation if someone rifled through our stuff.  We will feel better if we at least did some minimum security improvements.

I still need to add the motion detector LED lights, if only so I don't trip at night returning from the bathhouse!