I think your thinking of the ink in a pen which is completely non toxic.
No, as I stated, I'm thinking of the newspapers I raised thousands of tegus on in Brasil. Those newspapers aren't hand written. My statement about poorer countries is in regards to the fact that many of them do not have regulations governing hazardous materials that can or cannot be used in regular everyday items (I can't count how many people I know that have gotten lead or arsenic poisoning simply from dinnerware in India). You are right, many things can lead to toxicity through intense exposure in a short time. That would be some pretty nasty newspaper ink to kill an animal in less than 5 days (assuming the tegu wasn't rubbed down with a new newspaper every five minutes).