Nope (although I think she might have shot him then, as well)
The first time they meet, Bulma almost hits Goku with her car. Goku thinks the car is a strange monster trying to steal his fish, so he picks it up and tosses it with Bulma still inside. She gets out and shoots him in the forehead.
Reads from right to left
---------- Post added 2013-04-16 at 11:14 PM ----------
And it turns out she used a machine gun for the panties incident