Small robots that serve cocktails on command. A woman asks a man to water her plants while she is on vacation. The man waters the plants. The woman comes home five or six days later to an apartment full of dead plants. No one knows why this happens.
Men take photography very seriously.
Women purchase Kodak Instamatics. Of course, women always end up taking better pictures. They exaggerate about money, they don't know football nearly as well as they think they do, and they fabricate stories about women. And not in abstract terms, either. They are extremely graphic and technical, and they never lie.