"Contagious" joke

Teacher asks her class to use the word' contagious'.

Roland the class swot, gets up and says, "Last year I got the measles and my Mum said it was contagious."

"Well done, Roland" says the teacher. "Can anyone else try?"

Katie, a sweet little girl with pigtails, says, "My grandma says there's a bug going round, and it's contagious."

"Well done, Katie" says the teacher.

"Anyone else?" Little Irish Shaun jumps up and says in a broad Irish
voice, "Our next door neighbour is painting his house with a two-inch brush and my Dad says it will take the contagious"......