MALE OR FEMALE? SWISS ARMY KNIFE -- male, because even though it appears useful for a wide variety of work, it spends most of its time just opening bottles. KIDNEYS -- female, because they always go to the bathroom in pairs. TIRE -- male, because it goes bald and is often over-in-flated. WEB PAGE -- female, because it is always getting hit on. SHOE -- male, because it is usually unpolished, with its tongue hanging out. PHOTOCOPIER -- female, because once turned off, it takes a while to warm up again, and even then, only when the right buttons are pushed. HAMMER -- male, because it hasn't evolved much over the last 5,000 years, but it's handy to have around. REMOTE CONTROL -- Definitely female, because it gives men pleasure; he'd be lost without it, and while he doesn't always know the right buttons to push, he keeps trying.