Given that this is a laptop we’re talking about, OP is definitely over selling it. Bring a backpack, unpack the laptop box into your backpack (assuming the box is too big to fit in the backpack itself). Something bigger like a TV would be more problematic.
The main worry is that being seen with new-in-box fancy electronics makes you look like “guy with money”. It’s not so much that someone’s gonna steal your TV on the subway, but if you can afford a new TV your wallet probably has good stuff in it. Then it’s just a question of “how bad is the crime actually on this commute?”. Most places it’d be fine but some rough parts of some cities I’d be worried.






Lead pipes are less of an issue that it would seem, as the pipes quickly develop a layer of calcium salts on the inside, preventing the water from actually coming into contact with the lead.
By all means, they need replaced. But they’re nowhere near the contributor that leaded gasoline was. That stuff probably fucked up 6 distinct generations. If you lived in a city, you were inhaling lead constantly.