If that's the case then I can see why there's so much arguing about NTR. That's a pretty meaningless distinction to most people I would think. The only way to avoid "catching them" is to intentionally avoid going there when they're doing it, which means you know it's happening or you wouldn't know to avoid it and you'd be bound to eventually stumble upon the scene at random.
That's like seeing your next door neighbor walk out the door of your house just as you get home from work and see your wife just stepping out of the shower as you walk in. You didn't actually catch them doing anything but you know damned well what happened. You could make sure to come home late every day to make sure he can give her a few extra pumps every day while you're at work without "catching them", but you know damned well what's going on even if you never see it actually happen.
That's the part that matters to most people I would think, but maybe I'm wrong.
