We’ve all got our own little superstitions, ranging from not walking under a ladder to quirkier customs like not putting new shoes on a table.

But should you be worried about sleeping with the fan on, chewing gum after dark or leaving home without your lucky acorn?

[Read more: How to be lucky on Friday 13th]

Bingo comparison site Bingo Find delved into the world of luck-related hang-ups and superstitions on Friday 13th to find some very obscure beliefs.

1. In Turkey…

No strangers to superstitions and luck-related hang-ups, the people of Turkey harbour a particularly bizarre belief that if you chew gum after the sun goes down, it will actually turn into dead flesh.

So if you find yourself with less than fresh breath there at any point, we’d avoid the gum if we were you!

2. In South Korea…

South Koreans believe that if you sleep with a fan on in the bedroom, you’ll essentially perish while you're asleep. This belief is so deep-rooted that even doctors are adamant that you shouldn’t risk it.

3. In China…

Number-related superstitions are rife in many cultures – Friday the thirteenth, anyone? - but few take it as far as China, who believe that the number four should be avoided at all costs. Many go as far as to ensure they don’t go to the fourth floor in most buildings, and even skip all levels with the number in them.

They also avoid manufacturing license plates with the dreaded digit. Fortunately the number eight is considered extremely lucky in China, to the extent that the Beijing Olympics began at eight seconds past 8.08pm on 8/88/08.

4. In Medieval England…

Back in Medieval England, pregnant women would prepare what was known as ‘groaning cheese’ – which was essentially a large rounded wheel of cheese that was left to mature for the full nine months – after which she and the family would dine on this and nothing else, leaving nothing but the outer rind.

The ritual dictates that the little one would be passed through the rind on the day of their christening – blessing them with a long and prosperous life.

5. In Italy…

Known as 'congestione', in Italy they avidly subscribe to the idea that, if you go anywhere near water within 3-4 hours of eating, you will, in no uncertain terms, die. Some even refuse to shower for fear of meeting an abrupt end.

[Read more: Why is Friday the 13th considered unlucky?]

6. In Ancient Britain…

Who needs anti-aging creams when you’ve got an acorn? In Ancient Britain, women used to carry them around in their pockets in the belief that that they would keep them looking fresh faced. In the Encyclopaedia of Superstitions, the oak tree is thought to ward of illness due to its own long life.

7. In Spain…

Eating 12 grapes in quick succession on New Year’s Eve is actually better than finding somebody to kiss when the clock strikes midnight in Spain. Locals believe that doing so will bring you great luck over the coming year.

Do you have any strange superstitions? Tell us in the comments below.