In this anime case, the potato chips were deadly cause the bag hid the supernatural weapon.
If you don't know about Death Note, the anime or films or manga--where the heck ya been? Stuff was all over the place a few years ago, t-shirts, bags, Adult Swim, common parlance. Shoot, they even sold fake notebooks that looked like the lethal death-god ones in the anime. :D Write a name, watch 'em die, basically. Only there were these weird rules and ways to complicate the use of the notebook. A lengthy cat-n-mouse game ensued, which included one of my fave anime characters of all time, "L", the genius detective out to catch the genius student killer ("Kira"). (Yes, I have "L" , "Rem"--my fave DN shinigami--and "Ryuk" magnets on my fridge. I almost got an "L" keychain. And I have cihbi art of Ryuk and "L". hahah. I'm hopeless .)
Let's see, two of the shinigami and every one of the "geniuses" (um, other than Near, maybe) had some sort of weird eating thing. Mello had his chocolate bar addiction (which he passed on to the death god Sidoh, hah.) Ryuk had his apples --and he's the only one with a healthy food fixation! L had a serious sugar-addiction, and I mean crazy-serious. Every time you see him, just about, he's eating something sweet.
In anime, you can eat cake and sugar cubes and chocolate bars from sun-up to bed-time, and even have salty potato chip binges, and not gain weight.
Yes, it's fantasy.
Anyway, one of the most parodied, laughed at, youtubed lines in anime was "I'll take the potato chip...and EAT IT!" Just the way "Kira"/Light Yagami said it told you he was already on the path to Death-Note induced madness. It was a sneaky, lethal use of bag of potato chips.
Not too off the mark. That salt-fat-carbs combo and assorted additives will kill ya!
For folks like me, who could binge on chips, both funny and not so funny.
When the death-god (Shinigami Ryuk) flips and hollers, "The symptoms are starting!" it's not as funny to some of us. A binge is a binge. The symptoms start. And then you're out of control.
Kira/Light went on killing binges. We go on food binges. It starts with one simple food we probably ought not go near, and before you now it, we eat it, eat it, eat it. If there really were things like gluttony demons, they'd be dancing and howling and jeering.
In DEATH NOTE, the potato chip binge wasn't about food. It was about the lust for justice turned into the lust for power, death, control. Good intentions gone bad.
When we eat for nourishment, it's a good intention. When we eat solely for pleasure, comfort, or oblivion, without measure, it's a bad thing. It's lethal. It's the first lines in a death notebook....our own.
Anyway, here's one youtuber's remix of the famous potato chip quote/scene (anime, not flick).
Enjoy the chip binge, but don't watch if you're very easily triggered: