Ok, so we have one piggie. We've been thinking of offering to foster guinea pigs for our local humane society, and if they are boys we would introduce them (after 21 days of course!) to Snickerdoodle until we find one he likes as a buddy. My question is, does anyone here foster? And are you able to give them up? We were only supposed to have Snickerdoodle for 6 weeks and find him a home, but we fell in love.