The situation:
A young adult doesn't understand most jokes. The carer of the young adult has been heavily involved with the young adult for years and will know them well by now. The young adult claims that their carer has been making jokes during their time together knowing that the young adult doesn't understand most jokes and gets them wound up. The young adult is visibly frustrated but the carer continues and doesn't reveal that it's a joke until they are very wound up and visibly angry. The young adults frustration and anger will draw out for some time even at home. The carer lives with them and has been complaining about their anger and frustration because they are coming across as rude. This has happened on two recent occasions back to back, and they have not been spending time together since because the young adult doesn't like them.
The carer denies winding them up but admits that they were making jokes. If the young adult were to spend time with them again would it be unreasonable for the young adult to record for the duration of their time together without the knowledge or consent of the carer incase they wind them up again and then share that without permission as evidence towards becoming emancipated from the carer.