My big question about this episode is: did David Henesy, age under 10, have any idea of the double entendres that were possible in the dialogue that he and Diana Millay had about the fire?
And the question that should have occurred to me before is: why didn't Laura use fire on Elizabeth the way she used it on Sam Evans?
Laura's already attracting attention to the connection between her and fire. I think she's wisely taking the least flashy action that she can. Liz doesn't smoke, so that looks more suspicious. Liz's injury or death by fire would turn everything upside down, bringing in the police, and no one would be in a frame of mind to make big changes soon, such as sending her off with David, even if she was beyond suspicion.
What I don't understand is why she necessarily needs legal custody. I suppose even David would resist if the family wasn't behind it.
Maybe I didn't want to notice the double entendres with David, depending on what they were, because I didn't...
It's Frank's expert whom I blame more for the loose "ESP" talk. If I'd been in the room with Garner, though, I think I'd have had questions to try to clear up the sloppy term usage...