5. Self Defense

A: Are you taking karate classes?

B: Yes, I just started last week.

A: That's so cool!

B: It's a lot of hard work!

A: Are you training to be like Bruce Lee?

B: No, I'm just learning some self-defense.

A: Oh, you mean like blocking hits and stuff?

B: Yes. I want to be able to defend myself.

A: That's pretty impressive.

B: I've learned a few skills already.

A: Remind me never to mess with you!

B: Don't worry; I'd only use my skills when necessary.