Negligence on the part of insurance brokers can have severe effects upon clients when they discover their insurance coverage is worthless. In one case, Near North Entertainment Insurance Services provided alternative rock band Third Eye Blind with a commercial general liability (CGL) insurance policy that excluded coverage for the "entertainment business". After insurance coverage for a lawsuit was denied because Third Eye Blind was and is, after all, in the entertainment business, the California Court of Appeal ruled in a published opinion that the broker had a duty to advise the band it needed something more than a basic CGL policy.