I was prepared for these kind of issues from the beginning.
Currently 21 of the rats are mature and ready to be sold. We're going to be keeping 3 to 5 of them. I'll be taking the rest to a local retailer who is legally allowed to sell pets. The price they set ($10 a rat) is high enough that theres a slim chance they would even get sold as snake food. (I would never sink that low! *eye boggling shock*)
The males and females are being kept in 2 seperate large cages. Both can support multiple rats with no problems and have toys, hammocks and bedding. The cages are cleaned once a week and the litter is replaced. They get fresh food served on a large bowl with treats every couple of days (gotta keep them happy) and their water is replaced (almost all gone withen 24 hours) every single day.
I know for a fact that only getting 1 rat can lead to a short and lonely life. General rule of the thumb is always 2 or more rats (as long as they are same gender) to keep themselves company but still need TLC from the owner such as patting and play. Most owners who only buy 1 rat find out the hard way that they need attention at 24/7, needing the most at around 12AM to 6AM which is unfortently when most people are asleep.
Because they have been sired from the same father and raised in the same cage at the same time (while they were young) theres a slim chance there will be any territorial issues. They have however (as above) been separated and weened from their mothers to keep them from "bang-banging" each other.
As for the other 13 pups, they are to young to be put in with the other rats at the current moment (the young girls are a bit still to rowdy.) We have a 3rd cage set up for this reason. Both the mother and the other female are in this cage, one acting as the suregent mother for when the real mother gets to over-welmed (all females have only 12 teats.) It also keeps them company.
Also if any do start "biting" its possible to train them out of it. Its people who don't know how to deal with it personally and "deject" them (usually its caused either by a parent or both being biters or are treated roughly at a young age.) None of the parents have bitten me, my flatmate or other people who handled them and the pups show no signs of hostility. Tessa has only "nipped" me once but that was because my eye was a little to close to her nose (only got my eyelid) because ratties love the sweet sweet juices of the eye (try and get The Simpsons reference joke.) :)
*nuzzles* I've had a cat thats given 3 litters before. They got sold/given to good owners. Unfortently every time I kept one, they either kept getting nicked off (stupid @$$holes) or rev-heads would run them down non-stop (this hasn't only happened to me but multiple people along the street I was living in over at Eagleby. Rev-heads are very common over there..)
Even if they don't get sold off straight away, the shop owner won't just dump them. They would lose their pet license if they did. Even then because they are licensed, they would have quick vetanery access and know-how when an issue arrises.
I'm prepared for this Marko. *gives the puppy eye look*