Hello, everybody,
First I would like to give a few answers. I live in the UK and I find the population density is very high here that it would be difficult to find a real wilderness. The main danger here IMHO is from elements. Therefore my question was about survival situation when you are abroad.
I got a bit strange thought now: I do not know how to use snares, but I shoot quite well from handguns. It is illegal in many countries to have a compact firarm, however, most countries do not require a license to own air pistols. What you think if you put air pistol into the PSK? It can travel in luggage between different countries and very convenient. Something light, preferably not requiring CO2 gas. It won't shoots rabbits, but sparrows without any problems! I think I will put this question as a separate topic.