Over my 14 years of work experience, I have occasionally encountered work environments that have turned extremely hostile for my last two weeks, simply because I decided to leave (I was once told by my manager at a DOE energy lab when I was in my mid 20s that he should "slap the shit out of me" for leaving, but that is a tale for another post).
"Reasonable" is up to you. As I said, notice is not (EDIT: as asked by other posters, this is US-centric advice. Please verify this applies in your jurisdiction) required. An employer is not required to provide you with any notice to terminate you, and therefore I only provide notice if I believe the work relationship will be amiable for the duration after I give notice.
Sometimes, you gain nothing from giving notice, and I refuse to allow fear ("hassle for employer", "coming back to haunt you") to drive my decisions.
Interesting. Were these environments where you would have expected that bad of a reaction?
(Here in Germany these things are a bit different anyways, default period is a month and can be longer by individual contract. Sometimes it is matched to the notice times the employer has to give, which go up to 7 months(!) for people that have been employed for a long time)
"Reasonable" is up to you. As I said, notice is not (EDIT: as asked by other posters, this is US-centric advice. Please verify this applies in your jurisdiction) required. An employer is not required to provide you with any notice to terminate you, and therefore I only provide notice if I believe the work relationship will be amiable for the duration after I give notice.
Sometimes, you gain nothing from giving notice, and I refuse to allow fear ("hassle for employer", "coming back to haunt you") to drive my decisions.