The childlike tendency of many males of the species to heedlessly put to use things that obviously weren't intended for the usage they've put them to and then acting innocent/dumbfounded/shocked when caught doing so by the female of the species who thought that NOT using the object in question in the manner which they've just caught the male of the species using was a no-brainer.
1. She (in shocked fury in the kitchen having walked in on a major mansgression): "I can't believe you just used our crock pot to change the oil in your truck. That's for cooking, now it's ruined!"
He (with befuddled innocence): "But it was just the right size for the job. You can always wash it out before you use it."
2. She (in shocked fury at his latest mansgression): "I can't believe you used mother's brand new lace tablecloth to wipe the gravy off your face with!"
He (with befuddled innocence while sitting next to a pile of clean paper napkins): "But there weren't any napkins, what was I supposed to do?"
She: rolls eyes in exasperation before rapidly massaging his head with the nearest blunt object.