I have one guinea pig and I am worried, because everyone says I should get another. I give him a LOT of attention, but I'm a little worried. If I get another one, I will be more attached to the one I have now. It's also not on my budget. My pig is lazy, because he's always been that way. He is also very large - he is fat, but his skeletal system is large, too. I also, don't have enough room for another. Help!