Good question! Actually, I sometimes can burp pretty loudly, but it has rarely ever occurred when it would be embarrassing. It's highly unlikely that you'd have a significant burp during work/a presentation. If you were out with friends eating and drinking, it's more of a possibility, but it's easy to excuse yourself and nobody will be bothered. It doesn't happen all the time, either.
Nissen Fundoplication 2/09
"Whatever you fight, you strengthen, and what you resist, persists.”
“Worry pretends to be necessary but serves no useful purpose”
“Accept - then act. Whatever the present moment contains, accept it as if you had chosen it. Always work with it, not against it.”