Afterthoughts too late

The phone rings. It’s a young lady with an Indian accent claiming to be from BT and calling about my internet line. Yes, I get them, too. So I do the usual. I waste a bit of her time by pretending to be a complete computer novice and I don’t let on that we don’t have BT’s internet.
    Some time after she rings off in disgust, I realize I should have had a go at her for letting bad guys use my internet connection without my permission and what sort of useless security do you have at BT anyway, eh? eh?
    Maybe next time.