At a SMK health insurance booth in a department store, the staff thanked a customer for buying the insurance. Suddenly, the customer pulled a gun to SMK staff as he was trying to threaten for a discount. However, the SMK staff grabbed the gun from the customer and pointed to the sky while the customer was ready to run. After the gun shot, the customer ran out of the booth, around the department store, and returned to the booth with a tired look. The SMK staff gave discount immediately as the customer was very fit.