I could have believed this if he said he swalloed sodium. Wow what a mess that would make. Sodium on its own is EXPLOSIVE in water. If he managed to get it down his throat before it exploded it woulda left a big gap in his chest, if not, ba bye head! Magnesium or any other Group 1 or Group 2 metal would have equally uncomic effects. However I've done lots of chemistry and while the compounds in the Anti-Freeze are lethal, they are in such small quantity that their concentration is weak. For instance, Vinegar contains acid. Its PH is roughly 4. However the acid is in such low concentration u'd have to drink litres of it to die. Same thing. Case, Fecking, Closed!