This was an offer some can refuse. A popular Howard Beach Italian restaurant’s attempt to host an ‘illegal’ Knicks watch party was crushed like a tomato when angry neighbors ratted them out for not having a permit — and ignited a b-ball battle in mob boss’ John Gotti’s former stomping ground that is sending people to the mattresses. “Jealousy — unfortunately, it’s just part of being successful. If you don’t got haters, you’re not doing it right,” said Angelo Pellegrino, who owns Brother’s