Starfleet Jedi

Worf never changes. He's the same gruf, irritated Klingon all through the Next Generation series. You might think after being around humans for so long he would loosen up a bit; maybe even tell a joke. I don't know, maybe I have high expectations and am asking too much...and besides his buddies may not actually be laughing at his joke but laughing at that disturbingly wrinkled forehead that looks like he's been beaten by an ugly stick one too many times.

Or someone used to sit on his forehead when he was a kid.