I'm sorry about you dilema, I can't imagine having to make that decision about Angus, or for that matter either of the other two. We had to put down 2 poodles we had when we were first married because of the bowel thing also (they were both very old). It is so very had having to make that decision, I'm sure you'll know when the time is right. Just remember, we'll always be here for you
Anna