Here’s what happened the time Yoshihiro Akiyama (called Chu Sung-hoon in Korea) was in America and was confronted with a good old fashioned restaurant register robbery:
While training in the U.S. last month, Chu was eating at a restaurant with no other customers. Two men approached the cashier at the counter and said something upon entering.
Choo initially thought they were customers, but sensed trouble after seeing the cashier grow afraid. Soon after, the fighter realized the two men were trying to rob the restaurant.
From then on, Chu said so many thoughts entered his mind. He tried to remember the faces and attire of the robbers as much as he could, and then thought about what to do if threatened.
Despite the nerve-wracking moment, he decided and concentrated on two options. If the robbers had guns, he thought, he would beg for his life despite being a professional fighter. If they had knives, however, he would fight and try to knock them down.
He then readied himself to fight in his seat, only to have the situation come to an unexpected end. The robbers just left the restaurant without incident.
“I thought that they left the restaurant out of fear after seeing my face, but I was mistaken,” he said shyly. “The cashier told me that when he flatly denied having any money on him, the robbers just left.”
Source : http://www.fightlinker.com/akiyamas-...bery-story.mma
I think hes being very modest. I honestly believe they saw him, one got an errection and didnt want his friend to see so he ran off. His friend was then confused as to why his friend had just run and decided it would be best to follow him.