So I got my rats 3 days ago. 4 of them, only a few months old. They take treats from me, without hesitation. I can put my hand in their cage for many minutes, and none seem stressed or even slightly bothered. I heard from another user on this site that rats are unique in the fact that they are okay with being picked up and handled from day 1. Well, so far at different times, I have tried to hold all of the rats. Each one immediately attempts, desperately to get out of my hands. It seems terrified. I set her on my lap, and she tries to walk away. When I pick her up, she latches on the couch. I do not want to hurt her, they do the same exact thing when I try to take them out of the cage, but on the bars. What do I do?