I'm a Fun-gi

There's this mushroom who walks into a bar one night. All he wants is one beer. So he goes up to the bar, hops up on the stool and asks the bartender for a beer.

- Bartender: Sorry mister, can't give it to ya.

- Mushroom: C'mon, just one beer..please?

- Bartender: Nope, can't do it.

The mushroom looks around and says again:

- C'mon, just..just one beer and then I'll leave you alone.

- Bartender: Look, for the last time... I'm not serving you the damn beer!

Finally the mushroom says to the bartender:

- Hey, c'mon man...

- I'm a Fun-gi!