Intuition?

So, for about a month and a half now, I have been noticing a particular old man at Wal-Mart almost every time I am there (he is not an employee). He is probably in his late 60's, wears a black coat and has a long white beard and glasses. I saw him in the cake isle the week before Makenna's birthday and he was asking me all sorts of strange questions. I could tell he was making them up just to talk to me. Weird. I left, thinking he was probably just some lonely guy who wanted conversation. Well, several times since then I have noticed him in the store. We will walk passed him, and if he sees me, he will turn around and just stare at us. We haven't spoken since that first day. He just stares. It is BEYOND creepy. Collin has seen him do it twice. This last time was on Tuesday. We were in the frozen food isle and out of the corner of my eye, I saw something dark pass by the end of the isle....then back up, turn and just stand there. Without even looking, I knew it was him and got a terrible SICK feeling in my stomach. Sure enough, when I finally looked it WAS him and he was just standing there facing me, staring. I know there is a chance that I am just paranoid and he could be a really nice man. But, I don't think so. I really believe that it was my "mothers intuition" and the spirit telling me something was NOT right.
I have been really cautious and have had to promise to Collin that if I go there by myself and see him there, I will have an employee walk out with me and my kids. I have just had a weird feeling about it all week. I even got on Familywatchdog (the sex offender website) yesterday to look for his picture. I know...I am probably loosing it...but better to be safe then sorry.
I just thought...if I go missing... you should all know where to start the search!!!
(Sorry mom, I know you don't think that is funny)