Stu is the main character in the Pixar short Lifted.
Lifted
One night, Stu is able to take control of the UFO, and attempts to capture a human named Ernie. Inexperienced, Stu makes several unsuccessful attempts before Mr. B, a more experienced alien, takes over. Upset over his failures, Stu begins to cry, but Mr. B offers him to take control of the ship once more and fly the two back home. Ecstatic, Stu begins to lift the UFO up higher for a moment, then accidentally lets it fall and completely crush the house (leaving behind only Ernie in his bed). Then finally, the two blast off.