I had a little plastic one in the early 70s...we were playing basketball in the driveway one day, with it playing on the sidelines. The monster kid from across the street (probably 2 years old then) picked it up, held it over his head and threw it down off the retaining wall he was at the top of, onto the driveway, smashing it to bits.
I got a little black plastic and stainless Precor after that, that I still have.
This kid went on (at the age of 4) to back his parents' car out of the driveway and smash our mailbox. He also went into our back yard, climbed up on our golden retriever's doghouse while the dog was sleeping in the sun and took a flying leap onto the dog's ribs. The dog reacted instinctively, putting his mouth around the little bastard's head, but didn't bite hard enough to draw blood, just left some teethmark bruises. Animal control quarantined OUR dog for a month, but did nothing about the 2-legged monster that had the run of the neighborhood.
What were we talking about?