One Portland waiter or waitress will receive generous gratuity from Kentucky man who travels across US giving $500 restaurant tips

BANGOR, Maine — Seth Collins, a 34-year-old Kentuckian, is a generous tipper — and not just 25 or 30 percent. For more than a year, Collins has been traveling the United States, popping into random restaurants and handing $500 tips to unexpecting waiters and waitresses. About a year and a …