You make it clear that it's your JOB and you need uninterrupted time. So ideally your spouse leaves you alone and is able to look after kids if you're working.

You make it clear that it's your JOB and you need uninterrupted time. So ideally your spouse leaves you alone and is able to look after kids if you're working. Don't answer the phone. Get noise cancelling headphones. Etc... If you don't want to or are unable to create said environment then you either go back to the office or accept interruptions.