You should be _prepared_ to leave immediately when you give notice, but wow, giving no notice is up near the top of the list in terms of dick moves. The except

You should be _prepared_ to leave immediately when you give notice, but wow, giving no notice is up near the top of the list in terms of dick moves. The exception to this is if you're being grossly mistreated (as in harassed or demeaned or abused, not as in underpaid). I've given less than two weeks before, but it was a contract I'd only been on for 3 weeks, so 2 weeks notice was excessive. Anything else, 2 weeks is a minimum. If you're a key person at a startup or small company, 4-8 weeks is more appropriate.