"Irish Rail" joke

The following is an exchange of correspondence between a customer and Irish.
Rail:
Gentlemen, I have been riding trains daily for the last two years, and the service on your line seems to be getting worse every day. I am tired of standing in the aisle all the time on a 14-mile trip. I think the transportation system is worse than that enjoyed by people 2, 000 years ago. Yours truly,
A Commuter.

------------------------------------------------ Dear Sir, We received your letter with reference to the shortcomings of our service and believe you are somewhat confused in your history. The only mode of transportation 2, 000 years ago was by foot. Sincerely,
Iarnrod Eireann.

---------------------------------------------- Gentlemen,
I am in receipt of your letter, and I think you are the ones who are confused in your history. If you will refer to the Bible, Book of David, 9th Chapter, you will find that Balaam rode to town on his ass. That, gentlemen, is something I have not been able to do on your train in the last two years. Yours truly,
A Commuter.