Dealing with overly confident people = learning how to clean up the mess when it goes wrong, because it's hard to to win once things turn into a persuade-off.

Dealing with overly confident people = learning how to clean up the mess when it goes wrong, because it's hard to to win once things turn into a persuade-off. Do anything and everything you can to slow the conversation down, to give yourself time to think, to delay decisions, and never be afraid to change your mind once the dust settles. Sure, it pisses people off, but at the same time it takes guts to go back and say "no, we got it wrong". Decisions don't have to be final until you're happy with them.