John has an emergency at the hospital so Sherlock's picking up Rosie from kindergarten
- Sherlock: I am here to pick up Rosie Watson.
- Teacher: And if I may ask who are you?
- Sherlock: I am Rosie's father.
- Teacher: But I have seen Rosie's father every day for the last two month and you sir are most definitely not him.
- Sherlock does an eye roll
- Sherlock: The OTHER one.
- Teacher: Oh.
- *chatter and gossiping among teachers and parents ensure*