Honesty
Dayus is pissed. He didn't like the way Sam fooled him.
This is the biggest humiliation he could ask for at the moment. Particularly, when he remembered how injured Sam is and how weak he was at the moment.
This should have been easily finished. He couldn't believe that not only Sam is playing around with him, but he is also doing so with such ease. It almost seemed effortless.
He felt like a fool. Rightfully so. What kind of person loses a his weapon when fighting like this, except for a fool.
He stopped in his tracks and didn't even dare to move at all for a moment. Sam took this chance and once again started running away. He must say that he is enjoying this a bit. He knew that he doesn't have enough energy or power to defeat Dayus head on.