Customer is Blind not Deaf...{simple saying that the Ocean
is Blue.}

blue is the color of the sky and sea,It symbolizes trust,
loyalty, wisdom, and confidence or just simply say ''when
you are sad, you feel blue".

Joke:--

Actually all the customers are blind who always see what u 
want to show them. If u tell a person chor chor all say him 
chor. Similarly if u tell someone stink then all the person 
uses there handkerchief to close their nose. Hence i can 
say to the customer the Ocean is blue infact the ocean 
water is with the same color as other water but the sky is 
blue it reflect the blue color on the ocean.

when the customer is blind,he should belive each and 
everything wat u describe.
if u say ocean is white,he has to believeit because he has 
no other option