My experience with large companies is that when they lay you off they escort you off premise immediately and give you two weeks pay. If you give notice that younare going to quit in two weeks notice they mmediately escort you off premise but pay you for the reminder of the day plus two more weeks. I was never laid off but that was the companiy policy. They don't want to risk having disgruntled employeees on their property. That being said I don't see any problem quitting on the spot under certain circumstances and have done it.
