1. Wearing coloured pants : Guys really need to understand this green, orange, yellow coloured pants not so cool, save yourself from the embarrassment and do not try 2. Breaking someones trust : That is the worst thing you could do to someone. 3. Clicking selfies : You may feel it's something really cool, but NO not so cool ( I say this on behalf of the entire human race ) 4 . Tweaking : I believe that Miley has done enough of that on everyone's behalf 5. Sleeping with your friends bf/gf : Always remember you friends present or even ex Bf/Gf are off limits 6. Hug a Lion : Why would anyone even do that ? 7. Propose when you drunk : It won't lead to any good and then you will end up blaming the poor alcohol 8. Animal Abuse : It is the worst thing you can do 9. Hurt yourself : God and your parents will always love you, hurting yourself is never a solution for anything 10. Dating your best friend : It is rare that it will lead