I agree with the obviously older heads regarding bonds. I think a bond is a gentlemans agreement between employee and employer. It is WRONG to depart before you have done your time. As others have noted it is no wonder that Virgin and Jet Star are making pilots pay for endorsements when this sort of thing happens.
A couple of years back I was bonded for 2 years and was offered a better job about a month into my bond tenure. I could have paid the bond out but I elected to stay as the bond in no way covered the costs of endorsing me and all the other trimmings. I just felt I had a moral obligation to the organisation concerned. I never regretted it and they now pay me handsomely.
I implore the selfish ones to reconsider when thinking of jumping bond, it gives us all a bad name. Remember it is a very small industry and deeds done now will come back to haunt you. Just ask any survivor of the War.