Speech errors (slips of the tongue) often ‘borrow’ from language in the mind that is downstream of the target language. Here is a good example from Theresa May at PMQs.
Prime Minister’s questions (PMQs) got a ‘whooo!’ of surprise today when Jeremy Corbyn was speaking at the dispatch box.
One way to put a politician on the spot is to ask them how many people have been affected by their policy. Three times seems to be the optimum number of times to ask according to the Andrew Marr’s rulebook as he interviewed Theresa May on Sunday.
Slips of the tongue can be annoying for interviewers when they happen once. But when one error leads into another and then another, all in the space of a few words, it can be triply frustrating.