Chopsticks safety?

I know that the japanese culture it's really different from ours and I LOVE it for that, I love Japan but imagine my face when I came across this advertisment in a japanese restaurant.

I mean, I know I look kinda dummy, but it was really necessary? well don't answer that *lol* I can imagine my brother and his friends doing something that stupid creative.

So pay attention to the japanese bilboard and don't play with your food err chopsticks.  and remember to Burp before you eat I can't imagine why but they consider it good manners (they are an upside world lol)