When you are stressed...
Or you're in the middle of a disagreement...
When your clothes don't fit this week and they did last week...
When after you've lost weight, the Doctors keep telling you, lose more...
When there are too many things going on in your life...
When you reach for the Angus Ground Sirloin you purchased yesterday and it's GREY.
Ok, those are just a few times that something humorous could help.