When Spence walks away to the bathroom, he goes around the corner to the doorway twice.
While Dr. Crawford examines the flyer, at one point he holds it away from the folder. In the next shot it is back under the folder.
Prunus Persica is a peach tree not apple.
When Doug, Carrie and Holly are in the kitchen, Carrie leaves the room to take a telephone call from Dr. Crawford about gardening work done by Danny. When Carrie re-enters the kitchen from the living room, you can see the reflection of the overhead mic in the window of the open kitchen door.