You're quite special.

No, absolutely not, it's not rude or wrong or bad. It's no worse than what a person who couldn't do what you can might do by accidentally overhearing. You can't help it. It is absolutely no fault of your own. We all hear one another's private business at times.

I hope that you can learn. If you ever need anything, anything at all but most especially regarding this, please, give me a call.