Season 3, episode 2 trivia:

Beaten, he turns away carrying the giant pizza back to his car. But, in a bitter outburst of frustration, he lets go with an angry cry and hurls the pizza toward the garage where, having shed the cardboard box entirely, it lands perfectly, rooftop, cheese-side up.
Walt's departure is filmed now via a roof-cam, with the pizza in the foreground.
Well folks, I like to pissed *and* shit my pants. The.funniest.moment.on.TV - this year if not longer. A 'nuthin but net' pizza three-pointer from a guy who's so white his last name *is* white.
And for the rest of the episode (which was coming to a very suspenseful conclusion), all persons approaching the house are viewed from the pizza cam - the private detective, the mexican assassins - all glance at the now-decaying pizza on the roof, as if to glean something meaningful from it's presence.
Brilliant.