Luckily my wife has turned off all senses the my RC hobby. I tested her by bringing my new 68 inch wing span Bucker bipe and putting it where she had to see it (by the washing machine). She never mentioned it. When I start talking RC to a buddy I have also found that she can't hear a word we say. I have tested this, she doesn't hear anything any of us say. I use the credit card about once a week at right around $30 and she has said anything about that either. Very interesting.