Heading To The Store Is A Piece Of Cake

(My sister and I are having a baking marathon. Currently there’s a cake in the oven which takes an hour.)

Me: “I’m gonna run to the store real quick, I forgot to pick up icing. I should be back in time, but in case I’m not back in 45 minutes, watch the cake. Okay?”

Sister: “The store is five minutes away…”

Me: “That’s right! If I’m not back in 45 minutes, forget the d*** cake and go look for me!”