A good pitchman can boost any product's name recognition with some high-quality shilling. A bad one, on the other hand, can quickly ruin the brand images that companies spend years and millions carefully honing. Take for instance these guys and gals, each of whom was given their walking papers following a scandal, public embarrassment, or bout of outspokenness. Back in , though, she was not just the embodiment of sexuality; she was also willing to do almost anything to be shocking. Pepsi apparently neglected to think about the possibility that something could go horribly awry when they took the singer on as their new voice, though. Think Madonna getting physical with a saint is offensive?