I laughed, and then I got serious again after a beat, and I continued, "And that's my main point. That something that costs so little and that wouldn't have riled you up if it wasn't so likely that it had been taken rather than misplaced, stresses both of us out on a Friday night, a time during which we've historically enjoyed ourselves.

It's probably not effective to say this, at this point in time. You have created an opening. If you would simply leave it open, his mind would spend effort in coming up with a conclusion. His mind would likely come up with a conclusion that generalizes better than the one you are offering him here.

Both simply changing the topic and continuing asking questions would likely have been more effective.

Judo is about letting someone fall by their own force.