I thought you were saying your sorry for a burp, so whay are you sorry?? Becuase you um took care of an urge while on the phone?? Where you screaming in thier ear and groaning?? If not no need to be sorry, its a phone or a computer its not like you were on thier couch.
tell me honestly, when i was trying to carry on a conversation, were you doing that? because that explains an awful lot.