Assuming there is a justifiable reason behind it, quitting on the spot is not at all unprofessional, and may even be the most professional thing you can do in a

Assuming there is a justifiable reason behind it, quitting on the spot is not at all unprofessional, and may even be the most professional thing you can do in a given circumstance. When I meet people who have quit on the spot, I always assume it was for a reasonable, professional reason. Unless I am somehow presented with evidence suggesting otherwise, there is no reason for that to have a generic stigma of unprofessionalism. It's just a normal part of business life. The same is largely also true with employment gaps. Too often people make unreasonable assumptions about why someone has a gap. For example, in my own case I have had a big unemployment gap due to a severe family problem that was truly unavoidable and required full-time effort from me for around 8 months. I'll never know how many hiring managers saw the gap on my resume and elected to reject me solely based on that, assuming it was a negative mark regarding my skill or job performance, without ever asking me to find out. I definitely don't want to make that same mistake by unfairly making premature assumptions about other people I meet who have gaps on their resume.