On Saturday, December 23, 2017 at 11:34:28 AM UTC-6, Frank wrote:
http://woodgears.ca/toys/slinky.html
Years ago, a customer of mine had 2 small sons. The 4-year old saw a commercial for Slinky on TV then pushed his 3-year old brother down the stairs to see if he would do the same thing. The parents had to explain to the doctors at the ER that their youngest son's broken arm had nothing to do with child abuse. Oh well, what are little brothers for? ^_^
[8~{} Uncle Springy Monster