Even though we're pretty sure the "Fast & Furious" franchise is all about cars, Mark Vincent claims it's all about family. At least, that's what he said when he introduced his son and daughter to Jay Leno on "The Tonight Show." Behind that tough gun-wielding exterior, the "xXx" star is a big softie. Vin told Parade that it was his time on the set of "Pacifier" that brought out a desire to have kids of his own. The daddy of two said, "Everything that I've done up until this point is insignificant in comparison to being a father."