Did you ever ask yourself--WHY?

The other day I was at  my local bank.  A big tall burly man was at a window.  He had a big white rat
on his shoulder.....with a pink collar.  As he turned to leave I asked, "Is that a rat?"  "Yes."  He replied.  "Does she have a
name?'  I queried.  "Pettulia;  She is my friend,  My only friend."  I couldn't help my response.  "Did
you ever ask yourself---WHY?"