I shared my thermal printer with the internet. What could go wrong?

Remember those old website guestbooks—where you’d scribble a note to the webmaster and it’d proudly show up on the homepage? It sounds risky now, but back in the early naive days of the internet, it was a badge of honor for any blog. I got hit by a wave of nostalgia (and I happened to have a thermal printer lying around), so I thought: why not bring the guestbook into the real world? What if…