From Phoenix Business Journal-

Employee just put a casserole in the oven.
Employee's plastic surgery for enhancement purposes needed some "tweaking" to get it just right.
Employee was sitting in the bathroom and her feet and legs fell asleep. When she stood, up she fell and broke her ankle.
Employee had been at the casino all weekend and still had money left to play with on Monday morning.
Employee woke up in a good mood and didn't want to ruin it. My favorite
Employee had a "lucky night" and didn't know where he was.
Employee got stuck in the blood pressure machine at the grocery store and couldn't get out.
Employee had a gallstone they wanted to heal holistically.
Employee caught their uniform on fire by putting it in the microwave to dry.
Employee wound up the airport and somehow boarded a plane.