One of these days, I'm going to need to write a Doctor Who fanfic in which the Doctor goes somewhen and absolutely nothing hinky is going on. He goes somewhen else and nothing's still going on. Bored, he goes on again. He lands, only to find out that Sarah Jane Smith has just routed the weird aliens. Landing site number four, nothing. Bored and frustrated, he heads for Skaro, only to land shortly after one of his previous selves has exterminated the Daleks one of the many previous times he's done so.
It's a big universe, and it's not all full of interesting bits.