Do you have pet Iguanas? I think they are cute. Have heard they can become aggressive more than most other lizards commonly kept as pets. I had a friend who would take any lizard in but no Iguanas.
I had a male pet Iguana for 14 years. He was very tame except during mating season around Feb/March for a few weeks, he became agreessve, territorial. I kept my distance during this time and kept him in his room most of the time during this period. Some Iguanas are nasty all the time, and some are tame. It is said that female iguanas are more passive than males. But my male Iguana was tame, I got lucky. Iguanas are like people, they have their own personality. I wouldn't recommend them if you have small children around. They can be nice one minute and turn to nasty the next, you just never know...