When Kitty is forced off the coach before it continues to Dodge, she manages to stick her brooch in the middle of one of the seats so that someone in Dodge will know she was there. When the coach gets to Dodge, Doc looks in the coach, and the brooch is down between the seat and the side of the coach.
When Kitty is walking around the cabin before and after the stew throwing incident. It sounds like she's walking around on a solid surface floor. Not, the wood or dirt floor a cabin in this era would have had.
As Kitty is trying to escape from the cabin, she fires at least three shots at Trent while he's fully hidden behind a tree. Someone who is as savvy as Kitty wouldn't waste ammunition like that.