There was a time when Chewbacca tried to teach Han Solo how to make the perfect Wookiee - style growl. Han ended up sounding like a sick Nexu. Every time he tried, Chewie would just shake his head and howl with laughter. It took Han days to get it even remotely right, and by that time, even the Ewoks in the nearby forest were making fun of him.
Once, R2 - D2 accidentally activated a droid - controlled disco ball in the middle of a serious Jedi council meeting. The room was suddenly filled with flashing lights and funky music. All the Jedi looked around in confusion while R2 - D2 beeped innocently as if it had no idea what was going on.