[svandamme]

whenever they are upset, keep repeating "it's not your fault"
It drives em nuts, they can't argue with it, they can't scream that your wrong, they can't calm down and simply agree with you.. It's beautiful

just keep repeating it in a calm , soothing voice..

it's ok... it's not your fault

Then watch as the programming starts throwing internal exception errors..
If you listen carefully, you might even hear the chips overheating and electrically crack pop fizzle...