New York Knicks owner James Dolan got pissed when a fan urged him to sell the team to someone who can help them win ... so he flexed his owner muscles and 86'd the guy.
Probably did him a favor.
The abysmal Knicks were in the final minutes of another home loss Friday night against the Sacramento Kings when Dolan headed for the exits early. In the vid -- obtained by TMZ Sports -- a fan is heard giving James a parting shot ... and it really gets under his skin.