hi there I'm off on saturday to collect 2 female piggies from a lady whos little girl as become allergic to them ive spoke to the lady tonight and she said that there both 12 month old there not too use to been handled and they are known to nibble now and again she also said that they need a diet due to been slightly over weight can some one tel me what I'm to do to bring there weight down and can some one also tel me if i can tame these due to the piggies nibbling now and again