He was staring at the mission goal, deciding what his next move would be.
If he acted too soon, then his plan would be ruined. If he waited too long, then he would miss the small window of opportunity.
His eyes darted nervously from side to side and he cracked his knuckles in anticipation.
Several beeps sounded in the room, and were followed by a sharp ring.
Out of the corner of his eye, he saw his brother reach towards his pocket.
He knew that this was the moment to move. If any more time was wasted, then the mission would be compromised.
Acting on an impulse, he swiped the target with a deft movement of his hands.
Immediately afterwards, he sensed the presence of danger. Turning around, he cried out, "Run for it Sammy!" Dean dashed out of the room.
Sam was left dumbfounded as he watched Dean steal a $0.75 lollipop from the register counter and run screaming out of the drugstore.