Also, if you read my post, I said a 12 INCH cord.
I read your post, did you read mine? :)
The problem isn't about the length, it's the fact that the ungrounded nature of the cord is obscured when a homemade cheater is used, (because of the way it dovetails into the female, unlike a real cheater, which are distinctive and have an external tab or wire at the plug.
I highly doubt anyone would add that to any device for a 1 foot extension.
Probably not, but would someone *remove* it before using it is the question.
The danger is that you have the your cheater plugged in to a longer extension, (because it's short, right?), let's say at a job site.
Some other contractor plugs a tool in to your cord at some point when you have stepped away... How would they know it's ungrounded?
Or if the cord isn't broken down after use and the next guy grabs it.
IMHO, its an added liability not worth saving $1 for.