What is a fun childish thing you still do as an adult?
For me, it's sticking my hand out of the window of a moving car. Whether I'm driving or not, I love having the windows down and waving my hand in the wind. I've loved it since I was a child and I'll never stop doing it!
I know how you feel, Lego saw me (and all the other kids of the 80's) coming. Ghostbusters, DeLorean, Optimus... all they needed was a Knight Rider. They need to let up so I can contribute to my retirement fund again.