Wait, it should be S-A-N-T-A, not SATAN. Someone was careless, very careless. And CARELESSNESS is one of the major causes of unfaithfulness. Now, I know that its all-to-easy to cross the line from being helpful to being a fault-finder, But, being very-careful is an important thing in a Christian- especially those who preach or teach in any way. Consider Paul's advice to Timothy.
1 Timothy, Chapter 4
16 Pay attention to yourself, and to your teaching. Continue in these things, for in doing this you will save both yourself and those who hear you.
Hebrews, Chapter 2
1 Therefore we ought to pay greater attention to the things that were heard, lest perhaps we drift away. 2 For if the word spoken through angels proved steadfast, and every transgression and disobedience received a just recompense; 3 how will we escape if we neglect so great a salvation—which at the first having been spoken through the Lord, was confirmed to us by those who heard; 4 God also testifying with them, both by signs and wonders, by various works of power, and by gifts of the Holy Spirit, according to his own will?
Point is- everyone needs to be