John had a date with Mary today and he asked Sherlock and you to look after his daughter.
Sherlock sat in front of the Baby and spoke in his insensitive tone.

Sherlock: "You're always looking, but you're not watching, Watson. If you want to hold a rattle, then don't throw it on the floor."

Sherlock put a fake smile on his face and gave the rattle to the baby. The little girl threw a rattle in his face and laughed. Sherlock frowned.