This is great for food critics. They can get their bite of food and write their review all in one swift motion. You'll have to watch out for the reviews that sound like this though: "The food had a heavy taste of ink. By the end of the dinner my mouth was coated in a blue substance as well." Get it? He was eating the wrong end of the pen? Man, I wish I could draw cartoons along with these articles (mostly because they'd pay me more).
I used to chew on pens like they were candy. I can't believe how gross that was though. I had no idea where those pens had been. I just did it without thinking. The same way you see children eating their shirts. By the end they are soaking wet in their own spit. Gross.