smiler joke

i was on the bus the other day and a young boy in front of me was
turning and pulling faces at me
this went on for almost the length of the journey and i just tried to
take no notice of him
i got to the end of my tether with him and said when we where
kids if we kept making ugly faces you will stay that way eventually
the cheeky little so and so said to me well you cannot say you
where never warned can you