Time flows differently when you know something is ending

I wonder how common it is for companies to give people notice and then have them work through a certain date versus those people who are laid off and are met at their desks by security and a box for their stuff and that's it? Is knowing the end is near better than just having the end hit you in the face? Are the people here for the short term bad for everyone else?

I don't really know. I once gave an employer my two weeks notice and was shown the door that day which left me feeling like I had left so much undone and me feeling in a bit of a freefall because they changed the rules and they said it was because it would be too hard for them to have me be there.

I also don't know if I really get that it's all ending. I mean I know I do, I have been talking about it for over a week but I keep slogging away at my work and chatting with my friends and coworkers and maybe I'm in denial. I've been told I'm taking it well which makes me wonder if I should be more upset or more mopey or more something? I'm just doing my thing. I mean T-day happened and it's T+9 (if you count weekends) and that's not going to change so don't you just move forward?

Guess we'll wait and see...