It's certainly not the worst scene in the series, but this comical interlude is quite literally the s***tiest scene in any Fast & Furious movie. Leo (Tego Calderón) and Santos (Don Omar) attach a pipe bomb to the plumbing system of the police station. Moments later, it violently explodes when one officer is using the facilities, spraying crap and various other fluids all over the place in probably the franchise's grossest scene to date.