They'll be running with the bulls in Virginia today. It's the first stop for a U.S. tour that comes to Baytown in December.

Organizer Rob Dickens says about 4,000 people signed up for today's event where a dozen bulls will chase participants through a specially-designed course. He says despite the dangers, those running, don't want to miss out. "When they sign the waiver they basically say 'I understand there are very serious risks with this event, but running with the bulls is so awesome, that I promise not to sue.'"

Dickens says roughly 2,000 people have already signed up for the great bull run at Baytown's Royal Purple Raceway.