How to traumatize your child.

1) Tell him that a leprechaun used the bathroom at our house last night while he was on his search for gold.
2) When he notices the stain of green food coloring on your hands (that wouldn't wash off after making the leprechaun footprints), tell him straight faced that you may be turning into a leprechaun.
3) Realize that your child is perhaps way too serious for these kind of things.
4) Reassure him that you are not turning in to a leprechaun, and that the leprechaun that came into the house was VERY small and cute.
5) Pay for therapy.