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

Example 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?

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

Example Input: Asking for a friend.

He does not hold any dual citizenship and only has a Lebanese passport. I am well aware of the diplomatic tensions these two countries hold but I was under the impression Israel did not have any restrictions on who could visit. However, I've seen contradictory answers online.

I suspect he might be questioned upon arrival. To makes things simpler, he's been living in Paris for years now and has no ties to anyone involved in politics in Lebanon.

Can he visit Israel with only a Lebanese passport? Also, even if he asks the Israel customs not to stamp his passport, can Lebanon find out he's been in Israel? Can he get in trouble when he decides to visit Lebanon?

Example Output: Can one visit Israel with a Lebanese passport only?

Example Input: I have a dream about a long bicycle trip in Spain from Malaga to Barcelona. It is about 1000 km. Is it safe? I mean, does Spain have enough bicycle roads to drive or would I drive on common roads with cars? Google Maps doesn't show any bicycle roads.

Example Output:
Is it safe to travel by bike between cities in Spain?