ZEBRA
on my windowsill. Whenever I see a zebra I think of the saying When you hear hoofbeats, think horses, not zebras. Meaning the simplest explanation (or diagnosis) is probably the correct one. This precept is also known as Occam's Razor. I do think it is generally true. But when in life you have had a few presumed horses turn suddenly into zebras... you learn to keep one eye out for stripes!