With the knowledge that people might be arrested, they continually participate in protests because they want to emphasize their feelings and opinions on a particular topic. People have different ways of expressing themselves, and without consideration of the possibility that they could get arrested, they express themselves until the person they are conversing with receives the gist of what they’re saying. Really there isn’t a complex way to answer this question, other than that people want others to realize what they are trying to say. If you need help, let me know and I will gladly assist you.