You want to clarify that? I remember Tiger's fans burned a couple of police cars in 1984, but I do not recall anything getting out of hand when the Piston's won. Same with the Red Wings championships. Now if the Lion's should ever win....well I won't be alive then, so I don't care.
I was looking in google and I cannot find anything. Maybe I am wrong. I coulda sworn there was some crazy after the Bad Boys championships in the late 80s -early 90s. Wasn't there some small type of rioting due to something Michigan State did/won in the early 2000s?