Don't taste the honey before you smoke the bees.

1. You don't do something important before preparing the right way.

2. Don't do something dumb without thinking about it.

Guy 1 "Damn, I just cut my hand while sawing."
Guy 2 "Really? How?"
Guy 1"I mean I wasn't really wearing gloves."
Guy 2 "Don't taste the honey before you smoke the bees."