I handled the store alone for pm session... Lights were flickering and the air con turned on and off on it's own. Then i realised that it was the motion sensor at work. Everytime the lights went out i will go over to the switch to take a closer look, then they came back on. Fortunately, I recognized the little sensors on the lamp covers.

Although it's a 5pm day, the hours seem extremely hard to pass. Repeated my check-time@5-mins-interval stunt. Cool shit.