It's not a good thing when the tool of your trade, your lifeline to code, and the interface to your job is broken:

I have no "F" key. 

I pop off keys almost daily.  I'm super aggressive when I type.  Seriously though - with this Dell D820 keyboard, the keys just have a little edge on them that my fingers occasionally catch on, and then the keys go flying. 

The difference in this case is that I can't actually get the key back on.  Usually I can just pop it back on, but this time it just won't stay on. 

So, I submitted a support request to get a new keyboard.  Now, I know that getting a new keyboard won't happen overnight, but I was a little disappointed when I got this response back from our support folks:

"On the under side of your D820 will be the Service Tag and Express Service code for your laptop; please make note of those and provide them to me. From there we'll be able to get the ball rolling on a replacement keyboard."

Get the ball rolling?  Ugh... this sounds like it will take a while.