Well, some dealers don't like YOU, an ordinary 
customer and a gaijin, know better than THEM, the 
big dealer and anime expert and mangaland 
native...
Some are even so offended they tell you JUST 
that. Or "Who are you to"-stuff. However, none 
ever insisted they were right...

As for cleaning... it would be a good advice for 
me to, but no... no cleanin here... well, a 
little. Like scratching a mess of blood and 
feathers from under my bed, THANKS, SOUZOU!!!