Contagious (Irish joke)

[CoRsA FeVeR]

Somewhere in Ireland...teacher tells the class to make a sentence with the word 'contagious' so as dad is walking Johnny home from school they come across a man painting a fence and Johnny says: 'daad, why iz he using sich a tiny wee brush to paint weth?' dad says: 'I dun't knoo boy, bot itz gona take the c**t ages' so the next day teacher asks the class who can make a sentence with 'contagious' Johnny raises his hand and tells teacher 'me an me daad wer walkin hom frum school and me dad said 'itz guna tayk dat c**t ages to paint dat fence!'