What Cleo said...!!
I too get the console hell 404s while reviewing, and I have never understood why...
Give them a nice "sorry about that.." page and direct them back to the front or give them some links to click..
http://www.dangerdave.com.au/thispagedoesnotexist.html
http://www.link-o-rama.com/thispagedoesntexist.html
Don't abuse them cause they wont be back
DD