That's why she has a carer, danny. Corrie has been steered by Brain Injury Matters, in particular Dr Jonathan McCrea MCSP, Head of Adult Services, in this storyline and I think Corrie is doing a terrific job with it.
Her behaviour in stripping off to have sex in public has less to do with memory loss and more to do with not being able to judge what is or is not appropriate behaviour in any setting. That loss of social judgement is the result of the type of brain injury Shona has.