Given a travel related situation, and given a specific question about the situation, summarize the question into a title

Ex Input:
I frequently fly around Europe only with a hand luggage. Recently I bought a Kensington lock for my laptop which I usually take with me. The lock did not cause any problems at the airports in Edinburgh, Bremen, Athens, Copenhagen and Stansted. However, it almost got confiscated at the security gate at the Gdansk airport (Poland). It took me half an hour to convince the guard that I do not intend to harm anyone with that. I was told that although there are numerous hand luggage restrictions, the guard has a right to make a subjective decision whether or not to confiscate certain items.

My question is - did anyone hear about similar incidents with Kensington locks? Are there any specific rules or guidlines that I can refer to to defend my right to take the lock with me? Or maybe kensington locks should not be taken on board at all? And how do the restrictions differ around the globe?


Ex Output:
Can I put Kensington lock in my hand luggage?


Ex Input:
I know in a bus, for instance, (well, at least on a school bus, when I traveled to out-of-town basketball games in high school) the farther back you are, the bumpier your ride tends to be. Is there a similar situation when a vehicle is airborne?

For the quietest ride, you clearly want to sit away from the engines.  But I'm curious if there is a part of the airplane that offers the smoothest ride.  That is, most free from vibrations during flight, or during take-off and landing.

I imagine the answer may be different for aircraft that have their engines mounted on the tail versus those with the engines mounted on the wings.  And maybe other factors play into the equation as well.


Ex Output:
What section of an airplane offers the smoothest ride?


Ex Input:
Someone I know is a Swedish-South African citizen, and has a Swedish ID card and a South African passport.

He's going on the Allegro train Helsinki-St Petersburg (and back), and his documents, combined, are sufficient for this trip (Swedes have freedom of movement in Finland, while South Africans are visa-free for Russia for 90 days).

The problem is: when booking the ticket online, you have to enter document info to be transmitted to the Rajavartiolaitos and the FSB, and the system only lets you put one document per direction.

So the question is: should the person put the document to be used at Finnish, or Russian, border control?

Does it differ in each direction?

I e-mailed and called VR (Finland's railway operator), but they were completely bamboozled and ignorant about the situation, and thus of no help (they said "put in the document to be used during the journey")

Also e-mailed the Rajavartiolaitos head office, in Swedish followed by English, but haven't received a reply thus far. Would write to the FSB St Petersburg division as well, but my Russian is too poor and I doubt they'll reply to a message in English.


Ex Output:

What travel document should a dual national register when booking the Helsinki-St Petersburg train?