"I say, it's just dreadful what you're planning on doing to those poor people. You really should be ashamed of yourself."
I'm sure the average atomic powered supervillan would be greatly impressed by her impassioned appeal. It would probably delay his deployment of mass destruction on millions of huddled innocents by at least a second or two.
"Bring on the English wench -- I shall have her cleaning Latverian toilets by daybreak!"