There are many of us that are guilty of saying 'sorry', when it's just not needed. New York-based, Yao Xiao has picked up on this and wants us all to say 'thank you' instead. We have nothing to apologize for most of the times that we are saying sorry, it's simply just a habit. So, the Chinese-born artist has drawn this cool little series of illustrations to help re-educate our minds! Check them out!