Hunters unique way of spinning ~

Was talking to a friend the other day about how some ASD kids spin and she asked if Hunter does. I replied yes with a chuckle. He is funny in when he chooses to spin. There are two ways he does it. One is if he is walking from point A to point B he will walk and take a spin on the way. Doesn't do all the time but, like many things he does, enough to take notice as something he can be found doing. His spinning however is most seen when I vacuum. Can only recall one time of the many cleaning days that he didn't spin ~ one time I vacuumed and he was in his high chair so instead of spinning his body he spun his hands in a circle round and round :) I have two videos of him doing this, one was today the other was taken a few months ago ~