Obviously not intended to be realistic, but still...
I would argue that individual scenes, within the premise established, were intended to convey a kind of realism (otherwise, for instance, the woman getting blinded at the doctor under false pretenses wouldn't have been so horrifying). So, that given, a couple questions:
(1) How is squash an individual sport, as opposed to tennis not being one?
(2) Why wouldn't the fat guy try to shoot the intruders? She appeared to give him the only gun.
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