Yes I did read. But if a tort can be trained to use a touch screen (for food or otherwise), why can't it be trained NOT to entre a room which is very much easier I presume. Please correct me if I'm mistaken.http://www.livescience.com/47155-tortoise-touchscreen-learning.html
This is a cute little video of some redfoots that were trained to use a touch screen...for food. It's the same story as the article mentioned above, but you get to watch them.