Why is it that people are so grateful to their first employers? These guys did nothing special, they just hired you. It is normal to hire inexperienced people and train them. One should be reasonably grateful for that but understand that employer also benefits from it (hi Captain Obvious). If a person is reasonably smart he/she will be able to produce useful work after a month of poking around. And being grateful for not being fired? Come on!
Be grateful to friends and lovers, not to governments and corporations.