WEST HAVEN, Conn. (WTNH) — Students at Bailey Middle School in West Haven got quite the special visitor to class Wednesday.

A life-sized talking and rolling robot.

The lesson? How to build a robot from the maker himself. University of New Haven graduate student Devon Clark showed off his high tech tool and also taught the kids about cyber security. “It can tell you if your email has been hacked, it’s fun, interactive, grabs your attention,” said Clark.

The robot could quiz the kids and also tell if their phones had been hacked.