No Cod

A man went into a fish shop and said
"Can I have some cod please?"
The shop owner replied,
"We dont have any cod"
So the man said ok then asked,
"Can I have some cod?"
The chippy owner told him again that there was no cod. So the
man said,
"OK... can I have some cod?"
At this the chip shop owner got really pissed off and said,
"Look mate we have no cod C-O-F-D, cod" the bloke said,
"But the is no F in cod."
And the chippy owner said,
"Thats what I've been trying to tell you!!!"