Thanks to all of you for your replies. However, I didn't post to be told what a horrible idea it is to take a guinea pig to school. I'm 65 years old, have been teaching for 43 years, and always have class pets. I've had numerous guinea pigs over the years, as well as gerbils, hamsters, a rabbit, frogs, fish, reptiles, and not one has been harmed by being in school. I take very good care of my pets, and the children do not hold or play with them. When they go home, they go home with me. (Our librarian has a rabbit and a guinea pig and takes them home every night. They're both several years old, and are in great heath.) I teach in a school full of disadvantaged children who either don't have pets, or have pit bulls. They are fascinated by the animals, and learn a lot about pet care and how to treat pets. They are an integral part of my classroom. (And for the record, I have plants in my classroom, have had worms, and probably anything else you might suggest. ) What can I say? I love animals, and want my little ones to love them too. They make great therapy pets, even though they aren't allowed out of their cages. The children read to them, talk to them, and learn not to be afraid of them. I appreciate your concern, but you aren't very helpful. This will be my last post. Take care.