I have this friend named Justin.  Justin owns a dozen pet rats.  Why he owns rats, I really didn't want to get into that so I left it alone.  One day, I asked him how his "pets" were doing.  He replied with "Well, I think they aren't getting along very well.  Three of them have alot of bite marks on them, I think they are fighting."  I said "Are you sure they are fighting?  Some of your rats probably have fleas."  So Numnuts responds with the worst response I think I could've ever heard..."Oh that's impossible, rat's can't get fleas."  Rat's can't get fleas???? Was he serious?  I informed him that any animal can carry fleas.  In fact I asked him what did he think started the Bubonic Plague?  He thought it was the rats themselves.  I sure hope that he doesn't walk in the middle of the road when he goes home.