We are just going to try and leaving them in over night with them and see if they take it. If not they will be in the trash and will get some live small mice and give that a try.
EDIT: If they were eating fancy rat and we are offering normal rat would they take it anyways? He could of lie about feeding the normal rat if we lied about the rest, we have some frozen fancy we can always try.
Also he girlfriend breed hamsters, could that be one more thing that they would have feed them and lie about?