No toads is bad news.

I get quite a few toads in my garden, and often they will wander into the drive at the side of the house and I have to catch them and put them back in the garden or risk driving over them in the car. At times this can be a pain, but perhaps I should be glad to see that they are still around. Apparently - nobody quite knows how - toads have the ability to predict earthquakes and will disappear when one is due.