"I don't want anybody stepping on anyone else's thunder."
"You can't pull the sheep over my eyes!"
"I don't mean to take the steam out of your sails, but...."
"I used to be as sharp as a button."
"That way I can kill two bricks with one stone."
"If my grandfather was alive today, he'd be turning in his grave."
"You can't teach an old leopard how to change its spots."