This wisher, Liz, left this message on our can the first day, telling us that TJ lived in the area, and perhaps he would see it. (Sopranos is a local restaurant)
The following week, she returned to tell us that she'd just run into TJ right across the street, and exchanged digits. At the end of their conversation, TJ spotted our installation and announced his intention to go have a look, whereas Liz told him, "there was nothing going on," and he shouldn't go look.
Now that her wish had come true, she certainly didn't want him to see what she'd wished for!
(She then described TJ to us, and asked us to distract him from her wish if he did come by.)