...You get caught sleeping at your desk.

10. "They told me at the blood bank this might happen."

 9. "This is just a 15 minute power-nap like they raved about in that time management course you sent me to."

 8. "Whew!  Guess I left the top off the Whiteout.  You probably got here just in time."

 7. "I wasn't sleeping!  I was meditating on the mission statement and envisioning a new paradigm."

 6. "I was testing my keyboard for drool resistance."

 5. "I was doing a highly specific Yoga exercise to relieve work-related stress.  Are you discriminatory toward people who practice Yoga?"

 4. "Darn!  Why did you interrupt me?  I had almost figured out a solution to our biggest problem."

 3. "The coffee machine is broken..."

 2. "Someone must've put decaf in the wrong pot..."

AND THE #1 BEST THING TO SAY IF YOU GET CAUGHT SLEEPING AT YOUR DESK...

 1. ".... in Jesus' name...Amen."