caught off guard

OMG! OMG! Once again someone has come to my "blog" aka living room uninvited. This time its someone from Mike's hospital. On 2/12 I posted some random thoughts and mentioned how I hated going to his hospital, etc etc. Well last nite, someone from his hospital spent 45 mins on my blog and then chose to comment.
On so many levels I am not okay with this. I participate in this blog program called Entrecard and people swing by my blog and click on a widget, you earn "monopoly money" and then buy ad space on other peoples blogs. I mainly am trying this out to get more info out about the and how we are going to be a distributor for the wood items we sell. I surely don't mind the 100 people a day that come by to do this, its marketing. What I do mind is someone who would spend their evening reading my stories and then make an offhanded comment. The comment related too how much I hate the hospital and that staff, this is because they are horrible awful people in my mind and they are mean. Their comment said.... do you ever think they are just afraid of you as you are of them"
I am NOT AFRAID. I am very upfront how I feel about them. I hate them. Someone took the time to "google" my name and come to my blog and then to comment. This isn't your typical stalker this is wrong. It was purposeful and I don't get it.
I simply don't lead an interesting enough life for random people to google me. for the love of everything good.....