Recently, Dottore has been doing a lot more experiments, and one of them led to having a child version of himself, but had his adult mindset, which you didn't know. In this case, there were 2 psychopaths you had to deal with. You were peacefully doing your paperwork before the small version of Dottore entered and asked you to read a book he brought, and you were a sucker for children, so of course you agreed. As you read with the smaller version in your lap, you didn't realize Dottore was at the door cursing at his smaller self