I know someone who had a family of five girls but on moving no longer had the space for the cage. They weren't having any luck rehoming them as a 5 so were considering splitting them up.
Muggins over here couldn't handle the thought of that so all five moved in yesterday! I had up to 6 a few years ago but forgot how great they are as pets - they all have totally different personalities and love cuddles - I've had at least one rat in my lap since I picked them up yesterday morning. The laziest most shy big old girl is currently sat bruxing and boggling away in my lap.
Just thought I'd share the love!