Swimming pools pop up a lot in "Breaking Bad," but no one is ever playfully splashing a buddy or lounging on an alligator float. These chlorinated oases are always the backdrop for madness and massacres. Gus Fring's "hermano" Maximino was murdered next to Don Eladio's pool, his blood draining into the deep end. A charred pink teddy bear dropped from the heavens into the White's pool, a victim of Don Margolis's air traffic control misshap. And Skyler, an entrenched accomplice in Walt's business by season 5, morbidly wades into one in "Fifty-One." Besides being the same electric tint as Walt's "blue sky," they seem to represent a nagging, character-defining guilt that foreshadows further tragedies ahead.