For the first time, we award our Doofus title to a non-human species - in this case, a Chinese cat.
A Chinese family borrowed a pet cat from their neighbour to catch a mouse which had invaded their home - only for them to become best friends.
Mr Li, of Changchun in north east China, was annoyed by the mouse which had sneaked into his house through a broken window.
"It was very foxy. I tried many ways to catch it, but it always escaped and then gained revenge on me by gnawing at the family utilities," he told Huashang Daily.
Li came up with the idea of borrowing his neighbour's cat, Da Huang, after paying them a visit.
To make the cat more enthusiastic for the task, Li asked his neighbour to starve the cat overnight before he borrowed it.
The next morning, Da Huang caught the rodent but let it go after smelling it - and to Li's surprise the mouse then started attacking the cat.
"Da Huang neglected his duty. He just pats the mouse off and after a while they just started playing together. Now they are friends and the cat even cuddles up with the mouse to sleep," he said.
He believes the cat's normal diet of chicken liver has left it too spoiled to eat mice.
Hmm. If I were a cat, I daresay I'd prefer to eat chicken liver too . . . but that still doesn't excuse playing with the damn mouse! Da Huang is therefore awarded our Doofus Of The Day title.