[weiming]

What I noticed last time at McD's, is that the ink literally rubs off from the colorful paper mat (on the tray) on which I have been putting ketchup and fries my whole life. Try rubbing it with your finger next time, yikes.

[raverbashing]

Did you expect that paper to be food grade? It isn't

[wjn0]

It almost certainly is. Likewise for the dye.