I don't think they did that one, and not sure they even could. Must be a pretty rare occurrence. Maybe it had something to do with the kid being younger? I do know that, over the years, people have tried CTB on various OTC meds and have succeeded, more so back in the "older" days. You can search out stories from back in the day about that. Lots of things have been engineered to be "safer" in order to make it much harder to die from intentional, or even accidental, overdoses. Back in the REALLY good old days, long before my time even, cough syrups and such used to have barbiturates, and even cocaine, in them. Even Coca Cola, actually, had cocaine in it at one point.