A Shocking Experience

Today I decorated my office at work. I put up all my Xmas items and started to hang lights. I was using a staple gun to hang the lights. As I finished putting up about 400 lights and I was stapling my last staple I hit the cord and put a staple right through the middle and the next thing I knew there was a loud pop and a flash of bright blue light then all 400 lights went out. I short-circuited all five stands and now every light is dead.. luckily I did not get hurt but now I have to go to Target and pick up 400 more lights and try again.