Anyone who toils as a cater waiter long enough eventually hears a horrible truth about the job: Clients at these uptight gala events routinely add a decent tip to their payment, but that money almost always ends up in the pockets of managers, not servers. Yesterday lawyer Maimon Kirschenbaum filed class action suits on behalf of waiters trying to claim their tips from the private catering operations at the Central Park Boathouse, Pier Sixty, and Le Cirque (pictured). He tells Grub Street that Pier Sixty is the worst of the three, because servers aren't allowed to accept tips during the course of a private party: "If you're really drunk at a wedding and you pull out a $100 bill and hand it to them, they're instructed to tell you, 'The host of this party has already given a gracious gratuity and I'm going to have to reject it.'"