Childhood

Yet another thing to blame on their parents!

This isn't peanut butter, but I have such fond memories of being the person to destroy/ruin/mess up a brand new jar of peanut butter.  We eat the kind that has only peanuts and salt so when a new jar is opened instead of a beautifully smooth surface to deface, the person (usually D.) has to stir it up to mix the solids with the oils.

At least there is still mayonnaise.