Read on another forum about a couple parking their motorhome near a motorhome dealership, having a look around, they noticed a 4WD pull up near their MH, a bloke got out and walked over to their vehicle put his key in the door lock!!!!!  They yelled at him, and he just shrugged and said he was just seeing if his van keys fitted anything else, and took off!!!!  Likely story! Now their door lock is damaged, the owner has had a health scare, not what you need when on a trip. 

Someone said it was likely a device that is used to remove locks, put it in, sharp twist and your lock is out, and vehicle open!!!!

Bit scary!!