I have a lot of experience with rats but I've never encountered a problem like this before. Here it is. I brought another rat home about 3 weeks ago. She is female and she's an adult. I knew when I got her that "she wasn't very nice" (that's what the girl helping me told me) and they were adamant that she be a "feeder". But having the big heart that I have I couldn't imagine the beauty being devoured and so...I brought her home. We've tried handling her but she is very aggressive. She lunges at your hand and bites very hard. She even jumps/lunges at the side of the cage when you walk by trying to get at you. I really don't know her past or if she's been previously mistreated. Like I said before, I've never seen a rat this aggressive so if anybody has any ideas as to how I can even attempt to handle her - or even touch her- I'm very open! Thanks!