In the finals of the 2000 US Open between Takeshi Okamura and Earl Strickland, Okamura places a towel on the rail/pockets several times to block the glare from the lights.
At 17:47, he does it for the first time. At 59:31, he does it again and the ref comes over to discuss and deems it legal.
Him missing the second one made it look like a shark by committee.