Old Irishman tale:
(1) Finds brass lamp on beach.
(2) Dusts sand off it.
(3) Genie appears and offers usual three wishes,
(4) Irishman questions authenticity of offer.
(5) Genie suggest he burn one of the wishes to validate the claim.
(6) Irishman wishes for a bottle of Guinness.
(7) Genie take extra pains to point out that bottle automatically refills itself when empty.
(8) Genie asks Irishman next two wishes.
(9) Irishman thinks for a while.
(10) Then Irishman answers, "I'll have two more of these!"