I've never really put to much thought into it before but you are right.
It is an odd expression and my mistake would be the more correct way of saying it.
(
Bobby Bob Bob also available on http://jbobw.deviantart.com/,
Wed 15 Jul 2009, 7:59,
archived)
Just a bit of venting my spleen
Anyway, if I can convince one or two people not to use it anymore, I'd be a happy person ;)
(
mediocre ha ha ha, you're reading this,
Wed 15 Jul 2009, 8:09,
archived)