One might think that--after the severe thrashing they took from the residents of Cayuga Island two weeks ago--Mayor Paul Dyster and his administration would be a little gun-shy when it came to antagonizing another Niagara Falls taxpayer, particularly one whose building provides the space where more than 300 other taxpayers make a living, and tens of thousands of tourists flock to each week during summer for a brief meal, a chance to sit down and perhaps buy a souvenir of their visit to one of the great natural wonders of the world. The latest twist in the two-year-old saga of Dyster attempting to use all means, legal and otherwise, to shut down developer Frank Parlato's One Niagara building occurred on April 8, with the receipt of a written notice from the city Corporate Counsel's office. The letter--addressed to Parlato's attorney James Roscetti--advised, in no uncertain terms, that Parlato was prohibited from occupying the ninth floor of his own building.