Marina, featured previously at Neatorama, has a YouTube channel called Mouse Agility, with which she aims to prove to the public how "intelligent and trainable mice really are." Marina uses a clicker to train her mice, and it appears to work quite well.
This video shows a mouse that is trained to ring a bell when it wants a door opened. To learn more about Marina's training methods, visit this website. Via Viral Viral Videos.
Before ringing the bell, the mouse looks like it's in disbelief. "Did she... Did she just shut the door? I can't believe that. ... So I'm going to ring the bell. She's making me ring the bell. Fine."
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