In 2012, PepsiCo won a small claims case against Ronald Ball. Ball claimed that when he opened up his can of refreshing Mountain Dew he found a mouse carcass floating in it. PepsiCo disputed the claim in an unexpected way. They did not roll out their standards of safety, nor their inspection certificates, nor anything else to show how the mouse could never have gotten into that can in the first place.
Instead, they claimed that the mouse carcass could not have survived being suspended in the bright yellow bubbly liquid 15 months after the can was made. They brought in expects to show that the mouse would have completely dissolved in just 30 days.
More than one YouTube blogger tried their own experiments with a rodent, Mountain Dew, and 30 days. Take a look at the video below and see just how right PepsiCo was. Be warned, it's not pretty.