Yes that's a likely occurrence and has also happened to me. People get notifications for messages received, if they're looking at their phone when it comes in, they'll see it before you delete it, even if they haven't read the message and be confused when they go to read it fully and there is nothing there.
Many things happen between sending a message and it being read. It just isn't that simple.. People expect it to be and get sad though.
Biting the hand that feeds IT
