Too bad he didn’t slice his fingers on pulling those signs down like that person who placed razor blades to prevent the same thing happening.
The best deterrent I have heard right here on FR is fishhooks.
Now that’ll give you pause the next time you think about stealing a yard sign.
As a general matter, one cannot booby trap one’s house to prevent a burglary. As much as I detest stealing or defacing campaign signs, using razor blades or fish hooks in this instance seems excessive use of trying to dispense personal justice - no matter how much I despise leftist criminals.