I used to bring my ball python in to my Mom's school and talk about snakes & reptiles, touched upon habitat destruction, and a few other things. Then one day, an administrator from another school brought their pet dog in and it bit one of the students. After that incident the county school board passed a rule saying no animals allowed at any Kanawha county school unless approved. And they're all ophidiophobic too
What I might try and do sometime in the near future is talk to a few people in HR at my work and see if I can't do a small show&tell for anyone with kids that are interested.