Where's my Sharpie?

I have a secret. Ok..maybe it's not exactly a secret but I doubt many know this about me. It bugs me to the point of whipping out my pen from time to time or ranting to my husband. I have a pet peeve with grammar and spelling errors. I admit I am at fault at times as well..no one is perfect. Anyone can often catch me with my pen circling errors in books and newspapers.  It's not the small errors that would only be caught by Ph.D's in English but rather the big ones that get me the most.  I have this strong desire that soon, by the light of the moon I will feel the great need to sneak over to a local hair salon with my Sharpie. Why? On their front door it states that on Sunday's they are open from 11 pm-9pm.  I'm serious...it's been like this for at least the entire 4 years we have lived in the area.  My husband can't figure out why it bugs me so much but it could be because he has the engineer mentality (explaining this mentality would take hours).  Others have asked me why I haven't brought it to their attention.  This is my dirty little secret...it's in no offense to anyone else. I do believe that it is just so embedded in me I can't help but get annoyed.  I ranted for a week awhile back because I was reading a book about freelance proofreading and found two obvious, scream in your face, errors.  Nothing is perfect- I know that. However, the error on the salon door is way to simple to ignore. Anyone out there agree with me? It would make me feel less crazy if someone did. Alright...where's my Sharpie?