Slightly Off KIlter

Sometimes I can readily understand how the theory of spontaneous generation came into being. Recently, we have had ants on our kitchen counter – the tiny little brown ones. I don't know where they are coming from. The only time I see one is in the middle of the counter. Always one or perhaps two, no trail, never coming from a cabinet or up from the floor. Just one ant, miraculously appearing out of thin air on the counter top.