I'm just running to the store - A desperate excuse to get out of a situation you messed up

A desperate excuse to get out of a situation you messed up

Me: 'I'm just running to the store.' (I spilled coffee on my boss.)

Friend: 'I'm just running to the store.' (He broke my mom’s favorite vase.)

Classmate: 'I'm just running to the store.' (She ran to the store and never came back.)