Why do the authorities remove their hands from the frame of the painting? Just leave them stuck there. When they have to pee they will be begging for help.

There was an eco-idiot who glued her hand to a road and a worker was trying to chisel away the cement to free her. Why?? Once these moron see that they will not be freed, I guarantee they won't be gluing themselves to anything.

Broadcasting the visual of the authorities removing the idiots is what they idiots want; TV coverage. If you leave them stuck to whatever they decided to glue themselves to, and then broadcast them still stuck a few days later after urinating and defecating on themselves, it is unlikely that stupid stunt will be repeated.