portable solar panel, ever stolen?

We had a 130W portable that we used for about 4 years and although no one ever took it, I was always afraid it might walk one day. When possible we used a big bike cable on it to tie it to the rig, but I didn't have much hope that that would deter a determined thief. Two 20# weights on tight quick-links might have also helped. They might take it, but they'd have to work carrying it off. I met a few people who had small generators stolen that had been chained down with heavy log chain.