Other things to consider is that while he's fully recovered from the infection that nearly killed him, Scruffy might not be back to full strength yet. The other two might see him as an intruder and might gang up on him. Scruffy is very resilient and doesn't back down.
Among the other two, I'm relatively sure that Dean is the more dominant one. Sammy always moves out of his way whenever Dean wants the tunnel for himself or when he wants the veggies or the water. Dean also outweighs Sammy by a few ounces.
What do you guys think? Should I try it? If so, what experiences have you had? What works and what doesn't?
Introduced the newbies, Sam and Dean to the outside grass eating experience today and it didn't go too bad. They were a little bit jumpy, but nowhere near as calm as these two. These two took to it immediately 2 years ago when I introduced them to it and they're old pros now. They hardly bat an eye unless it's a really loud noise. They eat their fill and let me know when they're done. They get pouty if I have to take them inside for any reason before that. I have their total trust, so they feel very secure with me watching over them when they go outside. I hope to gain that kind of trust with the other two.
After sitting with Sam and Dean, watching them act a little skittish, I felt proud watching Mr Bubbles and Scruffy so relaxed. I live by the airport, so there's planes but they don't even flinch when one takes off. They aren't scared of any of the neighborhood noises. With me watching over them, they have nothing to fear.
The arrival of the two new piggies is having a positive effect on them. Mr Bubbles is more active in his cage than he was before. He has started that nibbling on his cage when he wants something like Scruffy does. He squeaks more too. He's always had that "too cool to be a guinea pig" thing going on so he's never been very vocal. That has all changed now.
Scruffy has started wheeking very loudly because he hears Sammy doing it. He wants to be held all of the time too. Even though neither one of them share an enclosure (only Dean and Sammy do), I've got a very nice guinea pig colony going on . Sammy and Dean are across the room from these guys, but they are aware of each other's presence; in a positive way, it would seem.