I'm pretty sure I read a reddit comment a few years ago where someone said they were a customer in a resturant, and they saw resturant employees click on a mous

I'm pretty sure I read a reddit comment a few years ago where someone said they were a customer in a resturant, and they saw resturant employees click on a mouse attached to the wall to make an announcements (I think notify that an order was ready). It sounds like a very unique setup, so it was probably this one!