I agree with your suggestion, but I don't know how we can reasonably do that. At senior levels, it is very expected to put in an appropriate level of notice.

I agree with your suggestion, but I don't know how we can reasonably do that. At senior levels, it is very expected to put in an appropriate level of notice. My particular field is tight knit - we all know each other (life science). It seems the only way I could protect myself is to get an offer, accept it, start on say Monday the 25th and on Monday the 25th also - after I have sat down and gotten through security - send my boss a 'I am quitting' text. What do you think? How can we make this advice work in the real world? or is it just an unperfect trade off?