When you're at an authentic Asian restaurant and you use you're napkin to clean the plate and the utensils...
*At a authentic Asian restaurant with non-asian friends*
Asian:-cleaning the plate and utensils-
Non-asian: What are you doing?...
Asian: What does it look like I'm doing?
Non-asian: Err, cleaning?...
Asian: Exactly. *^* Better~
Non-asian: But why?...
Asian: PFFT, you might never know if its actually clean or not~
Non-asian: -starts cleaning-