14yo Electronics hobbyist Ahmed Mohammed was arrested, handcuffed, and dragged away from his local school in Texas after brining a DIY clock to school so he could show his engineering skills to his teachers. They thought it was a hoax bomb and called the cops.
Unfortunately for the idiot grown-ups involved, they only apologised and released him after the story went viral on social media. Even the US President invited him to the White House.
Heads up world, building clocks is something electronics hobbyists do. Here is the one I build when I was Ahmeds age: