have funQuote:
For example:
1. Learn Mining and Engineering.
2. Level up your engineering up to 200.
3. Take Specialization quest, Gnomish or Goblin, your choice.
4. Get all items so the quest can be finished.
5. Drop engineering and learn Blacksmithing.
6. Complete Specialization quest.
7. Gratz, you have learner Gnomish/Goblin Engineering, you can drop it if you want so you get 1 free profession.
You can do same with Blacksmithing, Tailoring, Leatherworking.
Have no idea if its patched or not, worked fine a while ago.