No one can stop me, I'm a livewire...

"Yeah? Well, even I had a little trouble at first, but the grass ain't too bad once you get used to it." As if to prove the point, Heiji yawned a little. "Can't exactly operate on no sleep, y'know. That goes for eating, too. The food's gross, but it's all we have."

There you have it, the reason Heiji shoved down that gruel. Well, that and you got a lot less picky if you were hungry enough...