Zayd and Ethan are watching me sort laundry in my bedroom.
Me: These are yours Zayd, right? (holding up a pair of tighty whiteys)
Zayd: Oh my God no!
Me: Oh. I thought you wore these.
Zayd: No mom. I wear boxers now.
Zayd: Yes. I graduated to boxers.
Zayd: First you wear briefs... then you wear boxer briefs, then you wear boxers...
Me: I didn't know that.
Zayd: And then when you think about it it really goes like this... first you wear diapers, then briefs, then boxer briefs, then boxers then boxer briefs, briefs and finally diapers again.
Zayd: It's the life cycle of underwear.