You can make it foolproof, but you can't make it damned foolproof...
There is the possibility that rather than checking if the battery was genuine, he was actually joking about checking if it was genuine, and didn't expect it to give so much when he bit into it.
This is not trying to excuse his behaviour, just trying to understand it. No matter the reason it was a stupid thing to do. I mean, he's lucky it didn't blow up in his mouth. All he really has to worry about is if the store is going to charge him for the exploding battery. (Some stores might replace it just as an act of goodwill, but others will no doubt point out that it's entirely his own fault it failed.)
Comments
You can make it foolproof, but you can't make it damned foolproof...
There is the possibility that rather than checking if the battery was genuine, he was actually joking about checking if it was genuine, and didn't expect it to give so much when he bit into it.
This is not trying to excuse his behaviour, just trying to understand it. No matter the reason it was a stupid thing to do. I mean, he's lucky it didn't blow up in his mouth. All he really has to worry about is if the store is going to charge him for the exploding battery. (Some stores might replace it just as an act of goodwill, but others will no doubt point out that it's entirely his own fault it failed.)
But seriously...what on earth was he going to prove by biting it?
Can he tell the difference in taste between an original and 3rd party battery I wonder?