He was confident and happy to help. At this point, he was sneaking beside the door. He was about to go in and stop this robbery. However, there was more enemies. Two men came through the back door. Therefore, there was a total of four men West had to take down. This caused more tests.
To fix this, he had some money in his pocket, so he gave it to the robbers to convince them to let him take the cashier outside while they robbed the diner so no one would get hurt. While he was talking to the purpetrators, trying to negotiate the money in his pocket for the safety of the cashier, West was threatened.