Quote of the day:

"I can't tell you how many senior executives at firearms companies, over a beer when no one's watching, will say, 'You do know we realize that, of course, at least a third of our customers shouldn't be let within five miles of a gun."

source

Yep, the reason most of you are against background checks and registration is that you probably wouldn't pass one.  And your guns would turn up in the wrong places.