Studying Economics and Eating -- Are They Complements?

Cynthia suggests they are. She posted this to her blog and to her course message board:

When reviewing Chapter 2, the model used extensively throughout deals with a Pizza/Robot Economy. Did anyone else actually order pizza when reviewing this chapter? I did!

If studying economics and eating are complements, is it a logical implication that economists are fat? Or is the eating that takes place while studying economics a very good substitute for eating when not studying economics (do we time-shift our eating)? Or are there other important complementarities [some students would say that studying economics also induces nausea, countering the effects of eating].

In my case, any time I read about pizza and beer, like Cynthia, I'm at the fridge and the telephone. The power of suggestion easily seduces me.