Hi! as you can see i have problems with one of my rats. He is less than a year old and Im trying to get him to bond with my old boy, Ghost. The problem Im having is that myew boy (Ben) is affraid of Ghost even though Ghost has been nothing but sweet, trying to groom him and such and bruxing when he's near. Ben gets defensive and stands up on his hind legs and sometimes screams if he's too close. I have their cages side by side and so far everything is fine. Ive tried the bathtub but that didn't work, Ben just runs away and comes to me when he's scared. I got him from a breeder and he was the smallest out of the litter. Perhaps he has some trauma? IDK any advice helps.