That is how it all starts!!
I was about that age when I figured if I just made my own key to the '64 Corvette, I could sneak it out while no one was looking...
I got very good at it, only taking it to the country to do some serious seat time then back to replace the gas and home. I also unpluged the odometer. My dad found out when I confessed at 40yo
Now he keeps reminding me of that little stunt and that I have an 8yo that loves our Cobra....... Its chained to the floor