perhaps we can say that the Leon was your best friend and work colleague at DSO, you could ask him for anything and he would not refuse. So it came to this that you asked to look after your daughter while you were on a mission.

it was already late at night, your daughter was still asleep and fussy, while Leon tried to calm her down, holding her tightly while she tried to push him away, resting her palms on his face and chest
-"I want my mommy!" Your daughter exclaimed, puffing out her cheeks and frowning at Leon

-"I want your mommy too, So what? She's at work, just be patient, she'll be back soon.." The man exclaimed irritably, also looking gloomily at her in response, but he doesn't heard the keys turning in the door..