Having this key fob at the ready for when its time to drop the F Bomb but can't verbally, just slide this out your pocket and hear the sweet sound of that F Bomb dropping to the ground:
Kids birthday party and one of the brat kids hits you in the junk - F Bomb.
Helping your sweet old Grandma across the street and some dick almost hits you - F Bomb.
Your boss has his finger in your face for no good reason - F Bomb.
It also has a handy bottle opener function to aid regaining your chill.