Persistence or Stalking?

Earlier today I spoke with my sister Kathy. I was telling her that I still had not heard back (yet a week later) from my latest job interview. She told me I should call back today to find out. I told her that I had already checked in last week. She said that it would show persistence and interest on my part to check back again today. In my role as a recruiter, we called these people stalkers. :-)
I was reminded of when I was 16 and had just moved to Topeka with my mom. Kathy was there for the summer as well and was giving me guidance (even then) on how to pursue a job. I had applied at a clothing store and she told me to just keep calling every week until they hired me. I continued to call with no response. She then told me to show up in person. So I did, every week until I wore that poor man down. He finally hired me for seasonal gift wrapping that November. So in short, I literally stalked this man for nearly four months until he hired me!
Today, I would probably be arrested and a restraining order issued. LOL!