I have just very recently accepted a full-time teaching position at a reputable college (hooray!). I've been employed as an adjunct the last several years with courses assigned to me generally well in advance of the academic term. This full-time offer however has come in only a couple weeks before the start of the next term. I've essentially given my other institutions only 2 weeks notice (only 10 days notice in the case of one of the schools) to find someone else to cover my originally-assigned course load (one campus had me assigned to 1 section, the other campus had me assigned to 3 sections).
It's now only occurring to me whether or not I should've given these institutions a heads up that I had an interview and was potentially leaving. I'm not sure as to the etiquette in leaving a teaching position so close to the beginning of an academic term. I honestly thought I would've received the results of my interview sooner than I did. I'm curious though if telling these institutions that I had an interview would've made them rescind their offers of employment (generally a soft offer is made in advance of the term, and a contract is signed only once the term begins). To summarize my question:
Is it acceptable in this situation to simply provide notice once an offer was put in front of me, or should I have given advanced notice to my other campuses that I had an interview and merely the potential that I would leave? Would it be proper etiquette to give a warning to these institutions of a potential departure, or could that have resulted in rescinded offers of employment?
I suppose this is a problem that other industries don't run into; in normal businesses people can leave at any time with the work uninterrupted. In academia however, institutions need to secure a reliable person well in-advance of an academic term and it's generally unacceptable for a professor to give up their teaching appointment in the middle of a term. The institutions I'm leaving have rather large adjunct pools, so maybe it's not as bad as I'm worrying it may be.