For what it's worth, I never once insinuated that a laptop would get stolen on a train, only that I wouldn't want to bring such a laptop into the public in the first place. (Presumably, the laptop doesn't come into and exit existence upon entering and exiting the train, so this remains somewhat of a concern even if trains are involved.)

But yes, you're right. I've never personally seen a laptop get stolen. In fact, most people who have their laptop get stolen never see their laptop get stolen either.

I have, however, had coworkers who've had their laptops stolen. Multiple times.