please I need to tell a so called friend or maybe I shall say a aquaintance NOT to buy a rottwiler puppy for a present for his boyfriend!

I have been telling this guy I know steve NOT to buy his boyfriend a puppy for a gift it is stupid, I know his boyfriend and they are not home enough to take care of the puppy, :( I have talked to steve until I am blue in the face, :o
I explained about socializing, excersing , obedience training, the
size of a rottweiler, how big this rottie will get. I dont know what else to tell him.

I am so angry right now.
I know his b/f does now want a dog, his b/f is not the dog type of person, and the worse thing is housebreaking the puppy steves b/f will not allow any animal to doo doo in his house! the puppy will be out then... and were will the puppy go then? :(
steve will proboly give the puppy to me! but what Im asking is what would you say to someone that you know should NOT have a dog and you really want to talk them out of it??? I really need help with this. I even said I would call the aspca.. I cant sit by and watch this little dog be unwanted.. they know absolutly nothing about dogs or how to take care of them...
thank you in advance for any advice..
rompinrottie