Plaintiff, the tenant in a commercial building, was injured when his head struck a low beam at the entrance to an upstairs door and as a result he fell down the stairs.  This decision affirms a summary judgment for the landlord based on an exculpatory clause in the lease which absolved the landlord of liability for personal injuries suffered as a result of the condition of the premises.  Civ. Code 1953(a) might invalidate such an exculpatory clause in a residential lease, but it does not apply to leases of commercial properties.  Here, the landlord’s negligence was passive in not inspecting and bringing the property up to Building Code standards, not active, gross or willful.  So Civ. Code 1668 did not invalidate the exculpatory clause.  The clause shielded the landlord from liablity for ordinary negligence.