Thanks for the fish idea but I am not sure that would be good... before Dad got sick we had a huge (32 gallon?) fishtank full of them, and he just loved those fish. He took such good care of them! He was ABLE to take care of them... after he got sick he just stopped buying new ones when they would die until the last one was gone, and the tank was given away. It might hurt him to have fish around again because he can't take care of them anymore. Sorry, it was a good idea!