Bucking Peanut Butter

Somepony left the lid off the peanut butter. And now, Starlight is about to blow her lid.

There's an old saying that all it takes is one bad day to drive the sanest guy around to lunacy. Or in this case, one happy, expectant, formerly villainous unicorn into a seething, barely-held-together dam of fury and death ready to burst. What happens when somepony leaves the peanut butter open for the umpteenth time? Somepony is gonna get it and get it good.

Proofread by Bok.