The following are "What If?" situations for your story ideas.
Take them wherever they lead you.
What if you went out for a stroll on the beach and you found a human hand
in the sand?
What if a bank teller gets off the bus at 13th street as she's been doing for the
past six years. The bank building is being demolished.
What if a teacher reads the morning announcements over the intercom at his
middle school. He begins talking gibberish.
What if a priest is giving a sermon and a young girl in the back begins to
scream.
What if you go home and find that your mother is somebody else.