For me I've plenty. Although I didn't make the landing at the time, far from it, it was when Assange asked for Bitcoin donations. I'd been donating via card ubtil their Fiat supply was turned off.

Other than the DIY scene in my youth, I think a transformational moment was when I was handed a cardboard CD ROM envelope with a Live version disk of Ubuntu and an installation disk. Can't remember which version - just that the disks were red and the OS looked orange and brown when loaded.

To discover that there was a kind of free, DIY/'punk' alternative to Windows really changed my world.