if i've learned anything from my minor in cultural studies, there is no such thing as common sense.
And life has taught me that those with the most formal education are the least likely to have any common sense, which is NOT common anymore, if it ever was...
... & actually have some people who say this (COMMON SENSE) doesn't exist; furthermore, is not useful n chess. 

, u're the person arguing the difference between an' accident & mistake'! U r saying, elaborating on (agreeing somewhat), with my post. Why the defensive position?
if i've learned anything from my minor in cultural studies, there is no such thing as common sense.