<human>: Could you distill the essence of the text into 1-3 sentences?

So I was in a standard office meeting with a Jewish coworker and for some reason we got on the topic of the new interns and the cubes that they had to sit in. These cubes are extremely tiny, square, and provide only enough space to look straight forward, hands on keyboard, that's it. They are like little claustrophobic concentration chambers. In fact, one could say they are even "concentration cubes", which is precisely the term I decided to use.

"Concentration cubes" - what a f*cking idiot. 

I said this phrase a few times before abruptly stopping when my brain made the connection. I think I even at one point said we're "forcing our interns to work" in these tiny "concentration cubes" or something like that. 

IMPORTANT: I WASN'T trying to make any sort of holocaust reference, it was simply an adjective I chose to describe the cube and it wasn't until a few moments later that I realized it was very, very close to the phrase "concentration camp". Not sure if he realized this was unintentional or not, but he certainly picked up on the connection. It was quiet. After a moment or two of awkwardness we just sort of moved on talking about normal office stuff. Good job, me.
<bot>: Used the phrase "concentration cube" in a lighthearted way without initially realizing the extremely close connection to "concentration camp".