One day the teacher asked her students to use the word "contagious" in a phrase.
Sarah lifts up her hand and says, "Teacher, teacher I got one!! A cold is contagious!"
The teacher is very happy. Tom lifts up his hand and says, "Teacher... yawning is contagious"...pretty good Tom!!
Finally, Timmy lifts up his hand and says,
"Oh... Oh... I got one... The other day, as my mother was mowing the lawn, my father looked out the window and said it contagious to finish!!"