My mom and I took a rape defense class, which was great. At the end, we had a "test" in which the two police officers who were teaching it got all dressed up in safety gear so we could beat them up, and "attacked" us from behind. I was surprised to see, being a fairly timid person, how my survival instinct kicked in even though I knew it wasn't real. That coupled with what they'd taught us was very effective even with two of them. I think it's a great idea to take some kind of class at least once a year so it stays fresh.
"In riding a horse, we borrow freedom." Helen Thompson