Even though it most likely hints at his own back-story, Tramp's falsetto and the way he was animated when he re-enacts a woman yelling for the dog to be quiet can be pretty narmy.
After Boris talked about Tramp's Achilles' Heel being his weakness for females, Lady later tells Tramp, "As far as I'm concerned, you needn't worry about your old heel." Tramp honestly has no idea what that means.
Lady fetches the paper and tears it bringing it through the doggy door. Cut to Jim Dear reading a newspaper with a massive hole in it, even reaching right through to get his coffee.