List.empty()

Yesterday Billy and I went to a McMenamins, and when we walked in we saw the "Please wait to be seated sign." We dutifully stood by the entrance but no one even acknowledged us. After we had stood there for about 5 minutes we saw a waitress cleaning off a table, and when she walked away, we just walked over. When we got close, we realized the table hadn't been wiped down yet, but we sat down anyway. The waitress returned to wipe it down and said "Oh, were you guys on the list?" I said "Oh, no, is there a list? I didn't know." She said, "No, it's ok, there's no one on it, I just needed to know in case I had to cross your name off."