hello, in october i re homed a hamster from someone else and he was around 3 months, i’m not really sure of his temperament, he always comes to see me when i’m nearby but i think he is looking for food, he goes crazy and becomes quite aggressive when i go to see him/feed him/ pick him up and snatches whatever i have in my hand straight away, he even sometimes latches on to my nails and doesn’t let go. it’s safe to say i’m a bit scared of him, my other hamster is very gentle but she’s always been that way, is there anything i can do to calm him down and stop his aggression? i don’t want him living an unhappy life so i just wanted to check what i should do.