~ She continues yelling. ~
"Well at the very least I think it's only fair that you forfeit the hand because of your terribly rude and unsportsmanlike conduct. And you're getting off easy. If a baseball manager called an umpire a liar and accused him of cheating, he'd get ejected from the game and have to pay a thousand dollar fine!"
(In spite of how she's insulting you and how unreasonable she's reacting to what you know was a fair complaint about her not showing her hand, you decide to be magnaminous.)
== Hold back your tongue and reluctantly say "I guess I could forfeit it." ==