contagious in Marblehead

I went to a midnight movie at the Fenway cinema once. The theme of the pre-movie clip—where they tell you to throw out your trash and keep your feet off the seats—was “Courtesy is Contagious!” When the tagline showed on screen at the end of the clip, this dude in the back yelled out, with a thick Boston accent, “Yeah! And so is herpes!”

Spotted this rock next to the sidewalk in Marblehead and was immediately taken back.