Chatting with a coworker who said something about his siblings that implies to me he has a lot of them: come to find out he's the 5th out of 6.

I said "oh? Do you have a lot of siblings?"
And he kind of deflects like "yeah..." but sounds like he thinks I'm going to exclaim "THAT'S SO MANY!" if he tells me, so I volunteered that I'm one of 6 kids myself, & we had a fun little talk about the family dynamics which people from smaller families simply can't relate to.