inbox junk mail

My inbox had 13 new messages -- 4 were from people offering either a penis implant or Viagara. Now I"m not sure how exactly my name got on this list; or who believes a mother of 2 requires Viagara (or a penis for that matter) but I'm resenting the fact that such ideas are in my mailbox. I also notice that I've received nothing offering breast implants. I'm not sure whether to be pleased or insulted, really.