When my son 3 year old acts up sometimes I grab his legs and hold using both of my hands and hold him upside down. He's over the bed and like a inch above it. I tell him to calm down and when he says yes I put him gently on the bed. Last I did this and he started laughing at me and calmed down. I don't want to spank him. The corner doesn't work all the time. I'm worried that I'm mentally disturbing him. I've only done this a few times.