gassy: Desperation farts to sharts

When Classy n Gassy forget they got burrito bowls that are blowing up their guts not long after! With both of us so gassy we race to the bathroom. Classy jumps up and gets in first while she blows it up gassy is trying to hold herself together outside. Will she make it? Well as the title suggests no…get the full shart ending here now. [= enjoy and can you tell what fart was the shart?? How good is your Shartdar?