Top Fifteen Things to Say if You Get Caught Sleeping at Your Desk 
15."They told me at the blood bank this might happen."
14."This is just a 15 minute power-nap like they raved about in the last time management course you sent me to."
13."Whew! Guess I left the top off the liquid paper"
12."I wasn't sleeping! I was meditating on the mission statement and  envisioning a new paradigm!"
11."This is one of the seven habits of highly effective people!"
10."I was testing the keyboard for drool resistance"
9."Actually I'm doing a 'Stress Level Elimination Exercise Plan'  (SLEEP). I learned it at the last mandatory seminar you made me attend.
8."I was doing a highly specific Yoga exercise to relieve  work-related  stress."
7."Darn! Why did you interrupt me? I had almost figured out a  solution  to our biggest problem."
6."The coffee machine is broken...."
5."Someone must've put decaf in the wrong pot."
4."Boy, that cold medicine I took last night just won't wear off!"
3."Ah, the unique and unpredictable circadian rhythms of the  workaholic!"
2."I wasn't sleeping, I was trying to pick up a contact lens without using my hands."
1."Amen."