I don't think he was on in the end. Too much other news. His dad was scammed (the cakes and biscuits etc sounds familiar) to the tune of thousands in small amounts. They could not stop it, as the companies were abroad, and they also sold on details of victims to other companies. What Chris did in the end was to redirect all his parents mail so he could screen it. (he managed to get his fathers permission, which was not easy) . I saw the mail - there was a huge pile of it after a few months.
The companies then started phoning his dad, so he got them a Truecall call blocker which stopped the calls getting through. I think he also took charge of the bank account to make sure nothing was being taken out. His dad was getting very frail and a bit confused and his mother was at her wits end.
The call blockers are great - I got one for MIL who was getting several cold calls a day, each of which stressed her.