Guys, I respect your real-world experience, and cardrooms often have a local set of procedures. However, Roberts Rules (which are the widely accepted standard rules) say:
"The following circumstances cause a misdeal.............
a) The first or second card of the hand has been dealt face up or exposed by dealer error."
Therefore, unless your cardroom/home game has a different local rule which is posted up or agreed in advance, that should be the rule.
So, in the case that Deadone described, it should be a misdeal, unless some other procedure was agreed before the game began.
I have the complete text of the rules as a PDF file, and will be happy to email it to anyone who is really interested, subject to three conditions:
It`s a big file, you`ll need to be on broadband.
PM me your email address, don`t post it on the open forum.
If I get too many interested parties, and it`s going to take up my whole day, I`m going to chicken out.