Hard to believe how many people are concerned by that. So a cowardly thief gets glitter bombed and you are worried that they will come back!! Imagine how much worse it would get for them.
Think of it this way: You have made a 100 to 200 pound large hairless ape angry at you. This creature has human intelligence, and no interest in your feelings or your safety. Rather, it wants to make you suffer. It's more capable than the most advanced robot, and may hold onto its grudge and plan revenge over the next several months or a year.