That's one of the scary things for me. You express anger (not violence, just maybe yelling or even not yelling) or being upset, and some people with the power to restrain you and otherwise control you (because their judgment as "professionals" is simply accepted), do just that. It's never happened to me, but I always worry, what if I had a panic attack (and I'm not violent), and they put me in handcuffs? Being in handcuffs would send me into a panic attack, but how do you explain to a cop that it's the cuffs making you freak out, and you have to get out of them to calm down and be okay?