When Annette finishes her letter, she picks it up, then signs it and picks it up again to leave it on her bed. Also, she uses two pieces of paper for the letter, but only puts one piece of paper on the bed.
Aunt Lila leans Uncle Archie's gun against his chair and it falls down when they go to answer the front door. When Lila and Mike both go into the den, the gun is leaning against the chair again.