Employers look closely at those who take the money and run. What money? The money it took the other employer to interview and select you, hire you, do the HR work for you, rent a hotel and simulator time and pay instructors for you, pay you wages and perdiem, then get no service out of you for their investment. It makes one wonder why you took the job in the first place, and of course, why you didn't stay.

There are always extenuating circumstances; life happens. Births, deaths, divorces, and so on. Better opportunities come along.

Personally, I have zero respect for someone who doesn't honor their obligations; it doesn't matter to me if it's a marriage agreement, a training bond, a handshake, a promise, an IOU, or what the case may be. If you say you'll do something, if you agree to the training, if you take the job, follow through.

Some years back I had committed to a summer fire assignment. shortly thereafter, I was offered a position in a 747. I told the employer that I appreciated the offer, but that I had agreed to be available for the fire season, and I wouldn't break that agreement. I wouldn't do it to the 747 operator, and wouldn't do it to the fire operator. The 747 operator understood; I took a job with them at a later time. If you've just finished training and a big shiny jet comes along, honor your obligation to give some service to the employer who just trained you. That employer could have trained a trustworthy employee who would have given appropriate service in return for the employer investment, instead of you...if you take the training and run, now the employer isn't only out the investment in you, but has to spend that much again to get someone else.

If you have a death in the family, or you're injured, or you must care for a loved one, no one will fault you.

The reason you left after training, before OE, has a lot to do with how your leaving will be viewed. If you did it just to job-hop, it probably won't be viewed well. If you did it because you were just hanging on and wouldn't make it, you probably made a good choice, but it does raise competency issues. If you did it to care for your wife while she receives cancer treatment, then gold medal for you, nobody will fault you, and everyone will hope for the best, for your wife. Employers as your reason for leaving. Make it a good one.