I don't have boys so it may be easy for me to say BUT I do work with Seniors in the age group you are talking about. IF it was me: I would by 2, one for my dog and one for hers. I would explain a little white lie that after she goes home, your's start marking as well, this way it won't embarrass her too much. I am assuming she sees him marking (since you didn't say) Explain to her how hard it "was" to clean up after both babies and how your's continues long after she is gone, tell her you did some reading and this was suggested for this sort of problem. It most probably will go well if both babies are treated the same. Make sure when you get them made up, they have a pretty print (especially on her babys) a print she would be most attracted too! White lies need to be used with Seniors to protect their feelings. You wouldn't believe how many think I wear pull ups just so I can suggest it to them and get them to go along with the idea without embarrassment, but once they "know" I wear them for protection they are more willing to give them a try. At 78, she may wear or need them as well
