What I do in such situations is to think, "I don't have to like this. I don't have to like this." That mindset shows, and the scum bags try to locate another weaker person.
You can also think, "I'm not going to get hurt and I'm going to make sure I'm not going to get hurt." That mindset sets you up to act appropriately earlier on.
Don't fear your right to defend yourself. It's not your fault that they misbehave. You have to protect your interests.