If you're going to put guineapigs in class rooms you might as well slam a hammer into their heads and save them a slow death. Gp's get stressed easily , and that's why a lot of noise and rubbing is very bad for them. IN a classroom whildren will be prone to touch it constantly and scream into it's ears , making him very stressed and with the inevitable result of death. That small cage there isn't helping either. A teacher once adopted a guineapig from us , but "forgot" to mention it was for his classroom. A month later he was dead ; since then we never gave away any gp's when they would end up in public areas. I'm also very protective about the guineapigs when little children come around. I remember working for an hour and when I returned they where chasing the guineapigs who where clearly on the verge of insanity (Of course , they looked like that , you never know with pets) so I quickly put them outside and kepth the children inside wi!th their parents