Was this someone in my class?

There's an "Overheard at..." at McGill! And this is what was heard here:

Of Foils and Philosophy

Fencer 1: See, I’m a dualist, and he’s a monist.
Fencer 2: Well, since we’re fencers, we’re technically all dualists.
Fencer 1: Yeah, I guess he just duals himself.
- Fencing Tournament

I'll have to read it in "Pluralism" tomorrow.