Well, that's one way to tell them apart, we suppose.
A mum of quadruplets has shaved numbers into the heads of her six-year-old sons to help teachers work out which kid is which at school.
The super-cute foursome are almost identical, you see - the only difference being the shape of their eyelids. (And, to be fair, it's hard to lean in for a close-up of someone's eyelids when they're running amok in the classroom.)
"Even now, their father can't tell which one is which," harassed mum Tan Chaoyun of China's Guangdong Province told reporters. "Sometimes, he punishes the second one for something the third one has done."
All the same, we do like the way the quads are ever-so-slightly rebelling against their mum's numbering system by refusing to sit in numerical order in this picture. That's the spirit, kids!
Want to peruse a gallery of more of the latest funniest pictures? Coming right up!
Nick Clegg ponders the meaning of life, the universe and everything. Also, his unfortunate ear-plugs.
Liverpool manager Brendan Rodgers on the touchline. Also: a knife's edge.
We know what you're thinking, but don't worry: it's a left-hand drive. And the cat sitting next to him is in <em>complete</em> control.
A squirrel jumps onto the court at the US Open...
...and proceeds to streak across it. Shameless.
The Duchess of Cambridge's disguise fools no one at the London Paralympics.
Katie Price demonstrates her new underwired bra for the larger lady.
At last, George Osborne produces his evil claw.
Taking a nap, the Chinese army way.
The Queen pairs a turquoise twin set with pearls and red ear-plugs - not a look everyone could pull off. Not even Nick Clegg.
"Do we really have to keep hanging out with this dreadful couple?"
Our very favourite restored version of <a href="http://www.huffingtonpost.co.uk/2012/08/31/ecce-homo-fresco-cecilia-prize-funny-pictures_n_1845907.html?utm_hp_ref=pics--giggles" target="_hplink">the Ecce Homo fresco</a>.
Boris steals Barbara's ball, and he isn't letting her have it back...
No, really. He's not.
Oh, alright then. Maybe just this once.