A priest was walking along the school corridor near the pre-school wing when a group a little ones were trotting by on the way to the cafeteria. One little lad of about three or four stopped and looked at him in his clerical clothes and asked, "Why do you dress funny?" He told him that he was a priest and that this is the uniform priests wear.
Then he pointed to the priest's little plastic collar insert and asked, "Does it hurt? Do you have a boo-boo?" The priest was perplexed till he realized that to him the collar insert looked like a band-aid.
So the priest took it out to show him. On the back of the collar are raised letters giving the name of the manufacturer. The little guy felt the letters, and the priest asked, "Do you know what those words say?"
"Yes I do," said the lad who was not old enough to read. Peering intently at the letters he said, "It says, kills ticks and fleas up to six months!"