"To jump the gun"

Se você faz as coisas de forma apressada, sem pensar, cuidado. Você costuma "JUMP THE GUN", my friend! "To jump the gun" significa isso. Essa expressão vem do universo esportivo, especialmente do atletismo, quando os corredores queimam a largada.

Eg:
The police chief does not want to jump the gun by making a statement about who killed the investigator before the investigation is completed.

I think Jack Peter jumped the gun on proposing to Belle. They've dating for over one year now.

What about you? How often do you jump the gun?