For there is no such thing as careless mistake. Not only does it not exist, but it can not exist, for it being will shatter the very foundation of the universe (strings? point particles? jumping elephants?). Hence, it will soon cease to exist at the moment it exists because that which gives it existence is destroyed and those who give meaning to the existence of mistakes shall no longer be.
So by virtue of amazing logic and very clear and succinct exposition, my assertion stands.
