I would be careful with that question. I worked at one company where they were very much against re-hiring anyone that left based on where they went/were going

I would be careful with that question. I worked at one company where they were very much against re-hiring anyone that left based on where they went/were going. Another factor is personal differences can lead to that same false positives (negatives?) about that person. I guess I'm simply trying to say: that question is not always answered based on work ethic or product.