Gave away her "Sorries"?

Ok, so Sarah accidently spills her milk on Morgan's bagel this morning. And Morgan says "Sarah, you should say you are sorry." And Sarah responds..."I can't tell you I'm sorry, because I have no sorries left...I gave them all away!" Seriously, where does she come up with this stuff? So after I laughed to myself, I informed Sarah that she ALWAYS has sorries inside of her, that she can't give them all away! Sarah responded with a smirk.