We have a beautiful but bitey Bengal cat. She’s around 10 years old but lately (a few months) she has been behaving very aggressively towards DH. She’ll happily sit on his lap but if he gets up, she’ll launch herself at his legs and bite/scratch. She also goes for him when he walks up the stairs. She doesn’t do it to me! He tried to discourage her with spray bottles of water which worked for a while but she isn’t bothered by that any more and bites him anyway. Help!