I agree with other people here. I think that's mostly an act to get viewers on side.
Considering how he's always playing to the elderly and vulnerable, and always going on and on about feeling his age and having to spend time in hospital.
I do agree that a lot of it is probably put on, but I do think he genuinely get stressed or flustered as he simply can't compete with most of the other presenters (imo) which surely must play on his mind as he often has the prime hours that will require a high volume of sales.
The way I look at the situation is that there isn't really any need for Peter to go down the "acting daft" route as other presenters who do much better than him must have a proven sales technique which he obviously could learn to employ on his own shift. Why act daft & deviate from a proven method of sale and achieve sales of much less volume? that's the question I can't get my head round when questioning if he is playing daft or not as its not in his interest or Bid Tv's.
Do they honestly think people will buy through sympathy?