Agony of wrong number

In one or several occasions we have found ourselves call or text the wrong person inadvertently just because we misspelt a digit. It sometime makes us feel guilty and hate ourselves because our secrets have been uncovered or got into the wrong hands. But how do we save ourselves from this?

The difficult part of it is that is not possible to reverse the call or text. A single touch, press or swipe on call or send is enough to get your message to the recipient.