Celebrities that were cool or dicks

The Hardline thread made me think about this. Anyone who has met a celebrity/actor/musician that had a great experience or a bad experience, care to share? Some people you meet on bad days, and some people are just douches through and through. Others are cool as shit even though you may expect them to be total assholes.
I'll start....
When I was in college, they were filming Hellraiser IV the next block over from my school in Greensboro NC. All my buddies knew they were filming a big scene that night and we went over to the set (it was a street in downtown GBO) at maybe 4 AM just to watch them work. They were filming a scene where the cenobites were walking down the street with fire everywhere and it pretty much took all night for the 2 minute scene or whatever it was. As we were standing on the sidewalk, somebody behind me said "Aren't you guys supposed to be up early for class in the morning?" and I looked back and Pinhead (well, the actor who played him) was standing right behind me. It was pretty cool - the actor (Doug Bradley) was in full Pinhead makeup but had a leather coat on and big thick glasses as well. I shook his hand and said something dumb, and we stood uncomfortably watching the scene for the next 10 minutes or so.
More recently, we played an event in Charlotte and Michael Jordan has an apartment directly across the street from the downtown venue we were playing at. Michael was in the VIP section of the club next to where we were playing (it was the Epicenter if you're familiar, and we played on a rooftop with bars and restaurants all around us). A friend of mine is kind of a social fixture of sorts and he wanted to introduce me, so I went into the club barefoot and stood at the bar with about 6 other people who were talking to MJ. My buddy said, "Hey Michael, I want you to meet this guy, blah blah blah" and MJ shook my hand and said, "great to meet you, man," and I said something or the other that was probably embarrassing. Then we stood there and had a shot and listened to Michael hold court for the next 10 minutes, until he and his entourage left the club. Pretty damned cool.
I have never really met any celebrity who was a total dick.
I'll start....
When I was in college, they were filming Hellraiser IV the next block over from my school in Greensboro NC. All my buddies knew they were filming a big scene that night and we went over to the set (it was a street in downtown GBO) at maybe 4 AM just to watch them work. They were filming a scene where the cenobites were walking down the street with fire everywhere and it pretty much took all night for the 2 minute scene or whatever it was. As we were standing on the sidewalk, somebody behind me said "Aren't you guys supposed to be up early for class in the morning?" and I looked back and Pinhead (well, the actor who played him) was standing right behind me. It was pretty cool - the actor (Doug Bradley) was in full Pinhead makeup but had a leather coat on and big thick glasses as well. I shook his hand and said something dumb, and we stood uncomfortably watching the scene for the next 10 minutes or so.
More recently, we played an event in Charlotte and Michael Jordan has an apartment directly across the street from the downtown venue we were playing at. Michael was in the VIP section of the club next to where we were playing (it was the Epicenter if you're familiar, and we played on a rooftop with bars and restaurants all around us). A friend of mine is kind of a social fixture of sorts and he wanted to introduce me, so I went into the club barefoot and stood at the bar with about 6 other people who were talking to MJ. My buddy said, "Hey Michael, I want you to meet this guy, blah blah blah" and MJ shook my hand and said, "great to meet you, man," and I said something or the other that was probably embarrassing. Then we stood there and had a shot and listened to Michael hold court for the next 10 minutes, until he and his entourage left the club. Pretty damned cool.
I have never really met any celebrity who was a total dick.