They just wrote that to spare her feelings. The real reason was that they didn't want their kids going around saying 'tree' when they meant 'three'.
It's true the Irish are thick drunkards that are always spoiling for a fight stealing tarmacking or blowing up dustbins.
We did Ireland in history mainly the potato thing and pictures of little men in 3 piece suits and flat caps digging holes .
I really abhor people generalising about nationalities. It is lazy and petty and unbecoming of an intelligent humanoid.
I am a man of all people irrespective of nationality, race or religion. That is not general, that is specific.