### Instruction:
Give me a bulleted list of some things that could go wrong skateboarding down a steep hill

### Response:
- You could hit a rock in the street and go flying off your board
- You could gain too much speed and be unable to slow down
- You could be unable to stop and run a stop sign in front of a cop car
- You could be hit by a car
- You could have your board fly into traffic and be broken by a car