Manner Fail

While eating breakfast this Father's Day morning Briley let out a loud burp.  Here is the conversation that followed.
Me:  What do you say?
Briley:  Thank you
Me:  No, say excuse me.
Briley:  Excuse you.
Me:  No, excuse ME.
Briley:  Excuse YOU.

This went on for much longer and I was never successful at getting her to say "excuse me."  Whatcha gonna do?