“Yep this is too bizarre. He’s working on her car in her closed garage, no air flow, with the engine running? This doesn’t quite add up.”
Hubby runs hose from his running car parked outside, then once they’re dead he enters, starts her car, and exits.
I like it! In environmental stuff they can test the groundwater and trace the gasoline back to certain brands that have their own additives. To see what the leak source is - and who gets to pay for the cleanup.
I wonder if there might be some traces in the lungs with different chemicals depending on the brand of gasoline. Of course - if both husband and wife fill up at the same nearby station that won’t help.