Can anyone offer any advice?? My mum's dog is 16 months old - a Jackadoodle - and has been house trained for over a year, but last week he started doing a poo on the carpet during the night, five nights in a row now. He isn't unwell, not having diarrhoea, no changes to his diet or routine or anything else to make him anxious. We have tried feeding him earlier in the day, taking him out later in the evening, but even when he was taken out at 9pm and 11pm, he had done another poo on the carpet when my mum went to check on him at 3am.