I was reading quickly on a blackberry. Sorry, I scanned quickly and it wasn’t funny at all, so I didn’t think it was a joke.
Anyway, the lav dchasima is a standard that we learn from. So it is dealt with regularly and is not so far fetched.
You could have said that you would focus on not coveting your friends ox. Or his donkey.
Sheck out Peaceful Valley Donkey Recue if you want to keep that halacha.