Mine don't show any over interest in our ears. However I have several that want in our mouths. Especially if I happen to be drinking something yummy, such as tea or a mocha. What is especially weird about it, is they really don't want my mocha or tea from a cup..just out of my mouth. Me and the fur kids have had several discussions about this being uncouth behavior. So far they don't seem to care about etiquette.