On Internet128, Mats files this dispatch from the rat wars:

... The rats are easily spotted just about anywhere you walk and a few nights ago I was even treated to the spectacle of a fight (or possibly a mating ritual, for all I know) between two rats in our backyard. They went at it pretty good for several seconds, jumping at each other with about a foot of elevation from the ground, before taking it behind the fence, so to speak (literally, actually). ...