I have no trouble imagining all the horrible outcomes, because I did get into trouble several times in similar scenarios, where getting confirmation from a friend would have saved me. For example, a couple of hours after giving my work to a teacher, I remembered that my friend wasn't there, even though he was ready. I inquired him about it, and it then turned out that I gave it to the wrong teacher, and getting all my hand-crafted drawings back ended up being a very time and effort consuming task.