For no reason at all.

When I'm unhappy, it's usually only momentarily.  Because I reflect on the cause of my unhappiness. And nine times out of 10, it's for trivial and nonsensical reasons. Therefore, it would be absurd to remain unhappy. I'm also capable of being happy for trivial and nonsensical reasons. But that's acceptable. Doesn't bother me one bit. I'm willing to be happy for no reason at all. --Jim Broede