Seamus saw his friend Paddy, ploughing his field with a steam roller, and shouted,
"Paddy ya fool, what are ye doin?"
Paddy stoppped his huge steam roller and yelled back at Seamus.
"I'm ploughing ma field, what's it look it?"
"Ya don't use a f**king steam roller to plough a field. What you gonna grow.?"
"Mashed potatoes, ye fecking ejjit."