How do you "die" in Pokemon Go?

In some games, you don't have a character that dies and has lives that it loses when it dies and it's game over when all lives are lost. I'm talking about Mario for example.

In other games like Tetris, you "die" when a block extends above the top boundary.

So what's the equivalent of dying in Pokemon Go?

Dropping you're are phone.

https://www.youtube.com/watch?v=onPEzXy1plM

You can easily die when you try to catch Pokémons on a highway. That's where the most rare hides.