Sen. Pat Wiggins, D-Santa Rosa, interrupted a committee hearing Wednesday afternoon, screaming and racing toward committee staffers who apparently had failed to refill a water canister that she found empty after the hearing's lunch break. Another committee member had to intervene – blocking the 69-year-old lawmaker from the young staff members – before an aide to Wiggins led the senator back to her seat. Wiggins has been dogged with questions about her health in the wake of outbursts and other odd behavior. In 2008, she swore at a minister testifying in committee on global warming, exclaiming, "Excuse me, but I...