Originally Posted by
John T Warranty covers faults resulting from the iPhone. Faults resulting from misuse by the user are not covered. Defacing the phone could hardly be blamed on the equipment!

you would be surprised.
if what was brushed at all is inside the phone this could easily be grounds for problems. they could claimedwhat was brushed on your vaporize and get into the circuitry when heated or it flake off and get into speakers or onto contacts, etc.
not saying that's fair, just that it could be what happens