What is the most 'unlike yourself' thing, that you have ever done?

I cried out for help, literally, cried "Help! Help!". On the freeway, at a high speed, someone crashed into my car and I was trapped behind the steering wheel, smoke filling my car in utter darkness, me banging on the window crying out for help. I have never, ever, been so terrified for my life, or ever been one to need it so desperately.
It is part and parcel of my character to be independent, so this was entirely "unlike myself".