Something you shouldn't do, but really want to

Have you ever had the urge to yell at the top of your lungs "I hope all you motherfuckers die in a fiery blaze!" in a crowd of people that will not allow you to get where you want to go due to the sheer volume of people?
If you do and you actually follow through with the urge, please share the results with me. I'm endlessly curious about what would happen.