A distant in-law has a habit of bragging about things he should be ashamed of.

He'd ask for the Military discount at hotels, saying he was a Marine or other service member.

"They never check, and they thank me for my service".

He's never served.

I asked a wounded Marine veteran friend "That's really bad isn't it? What's it called?".

"Stolen Valor - What's his name?".

I de-escalated him to "Someday he's going to try that with a Marine in line behind him. We have ways of knowing".