I'm a bit worried about Barcelona, as it is the "pickpocketing capital of Europe." (I'm not actually quoting that, I just read some articles and made up the name.) Thus follows my anxious mutterings and ideas about this city. It is not necessarily logical stuff, though there may be the occasional logical thoughts thrown in there for variety.
Sadly certain measures are not available to me; I am not, for instance, going to buy a pickpocket proof bag with hidden metal mesh in the strap and fabric. My canvas bag will have to do.