Insurance — Homeowners — Water damage — Trial court erred by denying insurer’s motion for new trial grounded on insured’s improper arguments and questioning of insurer’s litigation manager that shifted focus inappropriately to insurer’s claims handling and bad faith, which were not issues before the jury — New trial also warranted by highly prejudicial and inflammatory comments made by insured’s counsel in closing argument improperly denigrating insurer’s defenses — Remand for new trial — Although insured’s counsel’s references to insured’s payment of premiums during opening statement and closing argument may have been improper and irrelevant to dispute at issue, whether objected-to comments alone were so highly prejudicial and inflammatory as to warrant new trial when viewed in context of counsel’s argument as whole is questionable