In reply to petrochemicals:
> Alot of thievery in spain in general, they are well prepared for it !. Caravanners are advised only to stay on acredited sites. One trick is whilst you sleep they pump sleeping gas into your caravan and then ransak you whilst your unconcious, i do not know of such things happening in the Uk or france or italy or germany !
This is nonsense. It's something that's wheeled out fairly regularly and it has no basis in reality. The Royal College of Anaethetists published a statement on this some time ago that points out all the many and obvious flaws. Their conclusion is that it's a myth.
The stories that POD links to all contain the phrases like "the family believe they were gassed" or "We are 99 per cent sure we had been gassed because we would have heard something." They're all anecdotal, and whilst one family had traces of CO in their blood that doesn't prove anything other than they breathed in some CO at some point. The method of delivery in this case was apparently to put a hose from the attackers' car under the van where there were some vents. This falls apart because in terms of density CO is about neutral - in other words it doesn't rise, unlike e.g. helium. It's hard to see how these exhaust gasses could have risen so effectively to gas a family of 6 who were sleeping at different heights.
In another story a guy claims to have a rash on his leg due to an adverse reaction to the gas, but he's fat and unhealthy so strange rashes possibly aren't that unusual.
The most likely explanation is that the thieves are very stealthy, the occupants are very tired after driving and when they wake up in the morning to find a robbed van they say "We must have been gassed!" because that's the only explanation, right?
Robbery from supermarkets is a greater danger so be super aware and take the time to leave all your valuables hidden or in your apartment etc etc.