While visiting at his son’s home, a grandfather tripped on a toy left on the floor by his four-year-old grandson. the grandfather fell and was severely injured. the grandfather regularly visited his son’s home and was aware that the grandson routinely left toys scattered about the house. the son had never warned the grandfather to look out for toys. the grandfather brought an action against his son to recover for his injuries. at trial, after the close of evidence, both the grandfather and the son have moved for judgment as a matter of law as to liability. the jurisdiction has abolished intra-family immunity and applies the traditional rules of landowner liability. what action should the court take?