The American author visited Paddy's farm for material for his book which was to compare Irish and American farming methods.

Paddy drove him around his farm in his tractor, a trip that took about two hours. When they were finished the American remarked, 'Is that all?' 

'What do you mean, "Is that all"?' said Paddy caustically. 
'Well, I mean, back home it would take me all of two days to drive around my farm,' boasted the American. 
'Ah, I had an old tractor like that myself but I got rid of it,' answered Paddy.