Some people.

The first image is an  Anti-Scott Walker protester who, along with a friend, locked her head to State Capitol railing in June 2011 in a budget protest, via JSOnline.  The police broke the lock and released her.  At the time we noted there was a simpler solution:

Turn out the lights, lock the doors, and go home. And leave them there.

Wisconsin State Capitol head lock

The second image is from the anti-Israel “Block the Boat” protest in Tampa this weekend, via Twitter account Global Revolution TV.  Presumably, she too was unlocked by police:

Tampa Block the Boat Head Locked

Here’s the view from another angle, via Twitter user RadicalMedia_:

Tampa Block the Boat Head Lock Car

[Trying to think of something witty to end this post with, not coming up with anything.]