The lizard brain

I mean the brain of a real lizard. an Iguana.

How many times does it need to get it's head stuck before she realizes that she gets stuck? I mean yank herself back with all four feet until her head pops free. Then she climbs the side and does it again and gets stuck so she's hanging by her head until she can twist herself around to drop free- unto the floor of the cage.

There's nothing but skull and skin, so there's no give and it's got to hurt, so how many times does it take?

BTW- does anyone in the San Antonio area want an Iguana (with a questionable tail) for Christmas? I'll probably throw the cage in free. Now with a brand new double door for easy access.