If you ask me, flies are just about the dumbest animals there are. The mere sight of one head butting the window, making that infuriating zzzzz-thud noise, triggers a fly-related torrent of abuse, punctuated every five words by "Why are you so stupid?" But scientists who have spent far too many hours video tracking the filthy little blighters say they deserve more credit. H'apparently they don't buzz around in random frenzies, they have "strategies". Yeah, like annoying the hell out of me. Didn't these guys have enough of Drosophila during GCSE biology?