Having spent a small amount of time in jail myself for protesting (and having faced raised army-rifles in a foreign country on another occasion while protesting for human rights), the one thing I can say with confidence is that you have to be well prepared. You should only act once you are ready to accept the consequences. Then you must be able to demonstrate enough grace and fortitude that it becomes clear you’re not a bad guy. You should never go alone, as that defeats the purpose of social change. Nonviolence must involve not only a lack of violence towards others, but also towards oneself.
Jaron Lanier, in "Don't be a martyr", here:
[ + artwork by Daniel Horowitz ]