Today I took Mushu outside, usual morning thing I do just to start the day with some fresh air and sunlight. Kind of Grey outside, not much sun so he seems way more alert than usual. My daily routine of leaving him on my lap or shirt always went perfect but today instead I placed him on the pavement, thinking it mightve been warm for him to feel. I noticed him looking around more and also seeming more afraid. After a few minutes, he started to run away, as if he was in his natural lizard state. He ran far away from where I was sitting so I began to go after him. As I approached him, he buffed up in defense mode and continued to run. Shocked a little, I took my shirt off to use to grab him to prevent mishandling him and to be sure I caught him. Putting him back in his cage, he has curled up under his basking branch and hasn't moved at all... my question is, what is this action? What should I do? Is this normal?