I have also found the Secret of Watching Fringe: don't do it while you're eating.

Heehee... One of the running gags is Walter's cravings for sweet things while he's busy dissecting something particularly revolting. John Noble has raised acting-with-food to some new level. For me, that Denethor scene of him stuffing his face while tragedy unfolds is still the most chilling of the entire 10+ hours.