Any advice is welcome/old dog vs. pup

[Giselle]

Her waning sight is definitely a factor. For that and many other age-related reasons, I definitely would supervise them at all times. Whenever you hear Cassie give a warning snap, re-direct Boomer and give him something else to do. It's just like regular training: whenever you give a correction, like Cassie's warning snap, you have to give the dog a positive alternative behavior, like giving Boomer a toy or playing fetch with him.

[boomersooner]

Oh, yes, they are definately supervised at all times..in fact, when they are together, Boomer is always on his lead so we can control how close and friendly he gets.....we sort of take Cassie's lead...if she snaps immediately, we know she wants no part of him at the moment. There are some times when she will tolerate him standing next to her or even sniffing her. She has actually wagged her tail, so in these instances we try to really encourage her and brag on her behavior while at the same time telling Boomer to "be nice".Thanks again for everyone's help!

[MoonandBean]

Awww Shannon...I'm sorry that things aren't going perfectly smooth for y'all. You are such a dog lover and I wish things could be nice and smooth for you and Boomer and Cassie but...reality stinks I'm sure it's RARE for people to bring home a puppy to an older dog (especially a dalmation) and have it go well at first. Moon and Bean are still hissing and slapping at Sunny but we're getting there...slowly. Here's my thought and Sunny is my first puppy so this is purely just a hunch: I think you need to find some older dogs who ARE good with puppies (maybe talk to people at petsmart; are you going to stay in touch with any of the people from Boomer's puppy kindergarten class...do they have older dogs too who are now used to a puppy?) put up a notice in petsmart "looking for puppy/dog playdates" or try to find a dog park) etc... Maybe if Boomer gets used to playing with other older dogs, he will learn how to heed their warnings and may get better at "playing" with Cassie. I can imagine how hard it must be for Cassie that Boomer is taking out all of his puppy energy on poor Cassie. You have to give him an outlet for that somewhere else.
Good luck/ it WILL all work out

[boomersooner]

That's a good idea....We are actually going to take Boomer to a place called Dallas Dog Sports for his next round of obedience training. His instructor would be the lady who trained Cassie. We weren't real pleased with Petsmart this go around...it just wasn't all it could be....anyway, Boomer is going to be in like a pre agility class where he will learn some more obedience but some agility stuff, too. So, long story short, I'm sure there will be some older dogs there as well as some instructors with dogs they could hook us up with, maybe. Thanks again for the great advice....I'm really glad things are working out with Sunny and Moon and Bean.....