These days there are so many regulations, safety standards and laws in place to try and keep children's toys safe from harming kids and even with all that in place, you still hear about toys being recalled due to risks of chocking or burning and so on. However, back in the 70s and 80s, there were toys that almost seemed like the manufacturers were trying to compete on developing the most dangerous toys possible.
Case in point was the Kenner Demolition Derby play set that featured two fair sized cars that were designed to blow apart into little pieces when they were smashed into each other at a pretty good speed. So whenever you smashed them together, little bite sized pieces of the cars with sharp edges would go flying in all directions, perfect for taking out an eye or being found by a toddler and choking on it. Having said that - you wanted one.......you really wanted one.