Dogs have a sixth sense.

A Man is hanging out by the river, watching people walk across a bridge, when a little shaggy dog walks up to him. Out of nowhere, the dog says

“Hey, did you know that we dogs have a sixth sense?”
“Really?” The man says
“Sure. That’s how we know when there are storms coming. That’s how we know Timmy is down the well, and all that”
“Wow, that’s amazing!” the man says “but can you prove it?”

The dog looks at the man and says “Sure, but let’s make a game of it. In five minutes, somebody on the bridge is gonna fall off and die. If you can guess who it is, I’ll follow you for the rest of my life, and tell you the future”
“Sounds like fun!” says the man “but what’s the catch?”
“If you lose, we swap places. I get to be a human, and you have to be a dog”.
The man thinks about it, and agrees to the deal.

He looks out over the bridge, and tries to see whom looks mostly like to fall off. Eventually, he spots a young man stumbling around, swaying from side to side, as if he’s been drinking heavily.

“That one.” says the man “He’s gonna fall off.”
“Alright,” says the dog.

So the two of them keep watching, and after a few minutes the drunken young man starts stumbling towards the edge of the bridge. He’s about to fall off when he reaches out and grabs the closest thing to him: a baby’s pram. In his struggle to keep himself on the bridge, he accidentally pulls the pram over, and the baby rolls off under the safety rails, and into the water. Everyone starts screaming, and the baby’s mother breaks down, wailing and sobbing.

The man looks on, dumbstruck, for a few moments before the dog gets his attention.
“Well, human, you lost. Anything to say before we switch places?”
The man looks out into the distance, eyes watery, stomach sinking and he begins to speak.

“You know… I always thought I understood what it meant to be human, but I’ve just gambled away my life to you, and I’ve done so over the death of another person—a child, no less. I look at all these people on the bridge, all in shock at this tragedy that’s occurred before them, all together in their grieving; yet here I have literally gambled away my humanity to you for the chance to forego shock, to forego surprise, to forego the slings and arrows of human experience. I’m not sure what to think. I’m not what is left to think. I guess you could say that this situation has really given me paws.”