Heidu...
I don't think the difference itself is funny, I thought of editing the post to clarify... I can see how aggravating that could be... what I thought was funny was your description of it You do what needs to be done... he sees what he doesn't want to do and doesn't do it.... It's so hard explaining what makes us laugh, but it definately was not your situation, just the summary of it. Am I making any sense?

"Our greatest glory is not in never falling, but rising every time we fall." Confucius