Born without a sense of humor? We are inspired by your courageous struggle. …Just kidding. Get the hell out of here and go read Wookiepedia's "real" article on Droideka.
Droidekas, designed by the Colicoids, were amongst the few battle droids that were not shit. For starters, they could PWNJedi. And clone troopers, for that matter. They also had fucking shields, for crying out loud. Oh, and THEY ALSO TURNED INTO WHEELS. AND THEY COULD ROLL.AND BOUNCE. What more could you need? A refrigerator? And they couldn't climb stairs. A bit like Daleks, then. Oh, Daleks can climb stairs. My bad. They were also awesome.
Droidekas also were notorious for eating clone troopers' balls. Not beach balls, the kind between... never mind. Either way, no droidekas were ever convicted of sexual abuse and/or cannibalism.