I'm at a beach. I walk down close to the water's edge, where there is a fence, with a pool of still water in front of it, and the ocean behind. The fence is wooden and about 7 or 8 feet tall, and a guy is climbing over it while his girlfriend waits on this side. In the pool of water, I notice those little sand-fleas that can bite you.

"Hey, are those sand-fleas biting?" I ask the woman.

"I don't think so," she says, "do they bite?"

"Yeah, they bite. It's not terrible, like a sting or anything, but it can be uncomfortable when there's a lot of them. Well, if there's any, really, but it's not too painful."

I figure I might as well try for myself, so I pick one up. It's a small crustacean, like a mantis shrimp, very colorful and seems like it's looking at you with big strange eyes. I set it on my skin, and brace for a bite, but it just skitters away.

I wander down about 20 or 30 feet to the left, where I can peek through the fence. I can see a wall of black rocks separating us from the sea, and I think that should be a pretty interesting place, but I don't think I'm going to climb over the fence.