Hi, I have a 6 month old very nervous male guinea pig. I adopted him when he was 3 months and i don’t think he had been handled very much cause he will not let me pick him up although he does run up my legs and sit on my knee for veg. I’d like to get him a friend so as he will have some company but i am reluctant to get him neutered. What is best, I know i will require another cage, should i get a baby boar or adopted another older boar. Thank you for the advice.