You are very brave.
I never leave mine intentionally unattended and if something forces me to do so, it's not for very long.
About a month in with my last DeLorean, I drove it down to Branson MO to see my fiancé who at the time was going to college down there. It was about a 4 hour drive for me. Always enjoyed taking the DeLorean. Plus it was summertime. We went out the evening I arrived and ate at the Cracker Barrel there on the far end of the strip for dinner. I parked it near the back of the lot and we were sure to get seats right by the windows that overlooked the parking lot. Perfect view of the car. We had a great evening and laughed at all the people driving through and snapping their necks for a double take when they saw it. About 30 or so minutes in, I noticed a group of guys walking up to it. We watched them for a few minutes and they seemed mostly harmless. Then one of them proceeds to open the driver's door. I couldn't have run out there fast enough. I slammed the door and about punched the guy in the face. He expressed that it was the first time he'd ever seen one and just wanted to see how the doors worked. All three smelled of alcohol. I explained to him what breaking and entering is and that he'd have to find another DeLorean to "check out". I was very prepared to get in a fight right there in the parking lot. Some people are just that dense.....and alcohol always compounds the problem several fold.
From that point on, I've never left either of my DeLoreans unattended in public areas. We don't drive it to outings we weren't intending to be car oriented because I end up spending the majority of the time worrying and checking on the car if we inevitably park somewhere. It's better peace of mind to just leave it at home. People CAN ruin a good thing.
The thing that's always really worried me the most is if I leave it somewhere locked, some meathead will over extend the door handle and snap it off. I still have plastic ones on my current D. That will be changing soon.