'That' joke

Wilson and I got a bit drunk last night on Ant Wine, and after a little cajoling he eventually told me the Very Rude Ant Joke. This is it:

An anteater goes into a bar and asks for a drink. The barman asks, 'What would you like ­­— a beer?'

The anteater replies, 'Noooooo.'

'A glass of wine perhaps?'

The anteater replies, 'Noooooo.'

'How about a vodka and ant juice then"

The anteater replies, 'Noooooo.'

Finally the barman gives up, asking, 'Why the long "No"s?'

I told Wilson that wasn't in the least rude. He replied, 'Anteaters are very sensitive about the length of their noses.'