STORY -- SOLID TRUTH
Once, a person was verbally abusing Abu Bakr (RA) while the Prophet (SAW) was curiously watching with a smile. After taking much abuse quietly, Abu Bakr responded to a few of his comments. At this, the Prophet exhibited his disapproval, got up and left.
Abu Bakr caught up with the Prophet and wondered, 'O Messenger of Allah, he was abusing me and you remained sitting. When I responded to him, you disapproved and got up.'
The Messenger of Allah responded: "There was an angel with you responding to him. When you responded to him, Shaytaan took his place."