For the last few years I've done a good deal of research on adopting a retired greyhound. While I'm not currently ready, there's a sibling pair that is available when I was looking and I fell in love. I've read that greyhounds do well in pairs. Should I consider adopting a pair together or would getting one and adding another be better to start? Financially, two wouldn't be an issue, but I do work full time so I was thinking that a pair would be able to keep eachother entertained.