Awesome, but I'd bet a high percentage of blank box users will see some retaliation.
Back in the 80's I had a large old car in noticeably fine condition, and had two batteries stolen in two weeks. It was like a 'rob one premium battery, get more free' sale. On the third visit, the thief got a surprise, but afterward I felt lucky that my car wasn't vandalized. I still feel a sense of satisfaction, and I'm glad I set the surprise, but there is no way I'd do it again. Probably would get arrested for it these days. Sad.