First and foremost, one must remember Vincent's [in]famous conversation with Mr. Winnfield about the pilot to Mia Wallace's short-lived television show, in which he clearly illustrates that he does not watch TV. This is important.

Later, after the thug unloads his Magnum on them [hitting nothing] and Jules is convinced that they have just witnessed a miracle, Vince backs up his "freak occurrence" argument by making reference to an episode of Cops in which a guy unloads his automatic pistol on an officer, hitting nothing.

So much for not watching television.