1. That if you rubbed two gooey aliens against each other they could have a baby. 20th Television / amazon.co.uk / BuzzFeed Another rumour was that you had to put them in the fridge to induce childbirth. 2. That one day your Beanie Babies collection would be worth a fortune. Tap to play or pause GIF Tap to play or pause GIF Flickr: mlehet / Creative Images / Getty Images / BuzzFeed I'm still waiting on my Garcia bear to step up and help me afford a mortgage. 3. That holding a buttercup under someone's chin was a good way of determining wether they liked butter or not. Getty Images You know, instead of just asking them if they liked butter or not. 4. That repeating "Bloody Mary" three times in the mirror would result in her ghost showing up and probably killing you. Tap to play or pause GIF Tap to play or pause GIF Warner Bros. Television Bet you still aren't brave enough to try it in a darkly-lit room while holding a candle. 5. That a rubber was a good way of making life choices. Twitter: @naomi_hellawell You're life choices probably haven't got any better since abandoning this technique though, so who knows? 6. And that a device made from paper could accurately predict the future. Flickr: katerha / Creative Commons Although you probably didn't fully believe in it – it was basically just a fun a way of passing time during history lessons. 7. That you could teach your Furby how to swear. Tap to play or pause GIF Tap to play or pause GIF Flickr: spilt-milk / Creative Commons / BuzzFeed Poor little Furbies the world over had to endure countless hours of being sworn at thanks to this evil rumour. 8. That Kel from Kennan and Kel had died in a car accident. CBS Television Distribution / Twitter: @SKILLITWORLD / BuzzFeed He is very much still alive. 9. That the phrase "no more tears" actually meant "no more tears". Tap to play or pause GIF Tap to play or pause GIF 20th Television We were so naive. 10. That eating bread crusts would make your hair go curly. Getty images / BuzzFeed The hair straightening industry wishes this was true. 11. That peeing in a public pool would cause a dye to activate and turn it a different coulour. Tap to play or pause GIF Tap to play or pause GIF Columbia Pictures The technology just doesn't exist, and honestly, it's something that needs to. 12. That the white part of ink eraser pens contained pig urine as an ingredient. westmerciasupplies.co.uk / Twitter: @JackBernard92 / BuzzFeed They did smell pretty strange, but so do a lot of things that probably don't contain any animal urine. 13. That you could find Mew by moving the truck in Pokémon Red and Blue. Tap to play or pause GIF Tap to play or pause GIF Nintendo / BuzzFeed So many childhood hours were wasted trying to move the damn thing. 14. That swallowed chewing gum stays inside your body for seven whole years. Getty Images / BuzzFeed Actual doctors, and not your mum, say that it passes through your system just like any other food. Still probably best not to swallow though. 15. And that swallowing the stone of a plum would cause a tree to grow inside of you. Getty Images / BuzzFeed It happened to be me when I was just a five-year-old. I collapsed on a lawn in tears thinking I was going to die. 16. That a former pupil in your school had swung on the back legs of their chair, fallen backwards, and cracked their head open. Tap to play or pause GIF Tap to play or pause GIF E! / Ryan Seacrest Productions Tbf this was a pretty realistic scenario, and shoutout to the teachers who went the extra mile and added their own twist to the story. 17. That your eyes would turn square from watching too much television. Tap to play or pause GIF Tap to play or pause GIF Nickelodeon / Paramount Television / BuzzFeed If this one was true, God help us all as smart phone addicted adults. 18. That if the wind changed direction while you were making a face, your face would stay like that. Getty Images / Twitter: @connormacd1 / BuzzFeed In hindsight this one makes exactly zero sense. 19. That turning on the inside light of a car while it was moving is illegal. Tap to play or pause GIF Tap to play or pause GIF Adam Ellis / BuzzFeed I actually contacted the Department for Transport about this one because I still believed it . Turns out it's not illegal, however "care must be taken to ensure that light within the vehicle does not distract the driver or impair his or her night vision." The more you know.