(ART) Bull is a video in which Austrian artist Hubert Dobler proves that you can't keep a good motorcycle down. A good motorcycle charges and snorts and revs and roars. His engine is always running, even when he's tethered to the ceiling of a dusty warehouse and all he can do is thrash about and kick up furious smoke. He demands to be watched. This is not to say that the other art at Howard House—a sculpture show including works by Diem Chau, Jenny Heishman, Sean Johnson, and Jason Wood—should be ignored. Just when you go, don't miss the Bull in the back room. (Howard House, 604 Second Ave, 256-6399. 10:30 am–5 pm, free.)