We all know one: a wise-cracking Smart Alec who makes a mockery of the rules.
And in the case of these images, rounded up from around the world by MailOnline Travel, they’ve taken instructions so literally that they’ve actually beaten the system.
One woman responded to a Spanish sign which read – ‘If you need to breastfeed, please cover yourself’ – by wrapping a scarf around her own head but leaving her feeding infant in full view.
Another poked fun at the powers-that-be when he visited an area with a sign banning ‘biking, rollerblading, rollerskating, skateboarding and scooter riding’ – by cruising through on a unicycle.
One young woman responded to a man’s request for ‘a pic of you in a bra’ by sending him a headshot of herself stuck to the inside of an actual bra.
Technically, they’re playing by the rules. But as we can all agree, they’ve definitely had the last laugh.
This jokester at a shopping centre took this sign to its world, by actually ‘falling’ into the line
One woman responded to a Spanish sign which read – ‘if you need to breastfeed, please cover yourself’ – by wrapping a scarf around her own head but leaving her feeding infant in full view
This animal store is in fact genuinely referring to baby birds in its use of ‘chicks’ here, but these two girls couldn’t resist a quick stunt as they shopped
This sign is either a slight mistranslation or an attempt at metaphorical wordplay, but at least one visitor took it literally
A flip-flop-clad comedian who grabbed this opportunity for a joke with both arms open
This character poked fun at the powers-that-be when he visited an area with a sign banning a comically-long list of pastimes – by cruising through on a unicycle
One young woman responded to a man’s request for ‘a pic of you in a bra’ by sending him a headshot of herself stuck to the inside of an actual bra
It makes sense to leave post underneath the doormat when no-one is home,but not necessarily when the box is almost the height of the door
A sign spotted at the Kaiser Permanente healthcare clinic in Oakland, California, on which someone stuck a Post-it note reading: ‘Did it hurt when you fell from heaven?’
‘It’ here, obviously does not refer to the actual dog, but it certainly could be read that way
In both these cases, casual innuendos were met with some very literal smack-downs
As signs go, this is one a has a somewhat passive aggressive tone to it – seemingly rewarded here by a succession of Smart Alecs
A slightly odd sentiment to throw into the sphere of social media, one that was tested and in this woman’s case, failed
A man performs a very literal read on a set of cooking instructions
He is seen ripping one of the sleeves from his jumper off and then filming it
Ice Ice Baby – courtesy of a quick-thinking rap fan outside a petrol station who happened to have a child with them
‘Please clean this bathroom tonight, clean it like the Queen of England is visiting, clean tonight’, reads the sign on the left… instructions which were taken very seriously (right)
But what if you don’t actually break the seal? A case of wriggling out of a loophole with this CD
The uploader of this image captioned it: ‘My aunt’s hand soap is way too literal and makes me uncomfortable’
And this user explained: ‘In his defense, I did say to put these in the bathroom. There is nothing like having a second grader living in your house’
In a nod to American TV broadcaster CBS, a deadpan woman holds a deadpan sign aloft
Crushed pineapple, sitting in a crushed can – there’s something undeniably poetic about this