A: Take off your shoes and walk in the sand!
B: I'd rather not. I bought swim shoes.
A: That's no fun!
B: They're fine, and I can still get them wet.
A: Why are you so paranoid?
B: I read that you can get bad cuts on the beach!
A: How can sand cut you?
B: It's not the sand; it's what people leave in it.
A: You mean like trash?
B: Yes, and even broken bottles.
A: I guess swim shoes are a good idea.
B: Yes. You never know what could hurt you.