A peer of mine (same organization but different scrum team) is a very involved father. He is often taking time off of work to watch his kids and leaving early to take his kids to soccer practice. I know that the other members of his scrum team get annoyed that he takes off so much time off for kids, but they all try to be supportive and understanding because he seems like such a great father.
There's only one problem: he doesn't have any kids.
I started having suspicions a few weeks ago when some of his stories didn't add up. After some Google research, I have become 99.99% sure that he's purely making everything up and lying about having kids to take time off.
Professionally, what can I do about this? He's not on my immediate scrum team, so it could be safe to just stay out of this completely. But I do feel like I have somewhat of an obligation to the organization and the company to let the truth be known so that he stops taking advantage of his teammates. And if I'm honest with myself, the whole thing pisses me off and I want to see him get in trouble or reprimanded for this. What is the best way to deal with this in a professional manner?