I think British expats around the world but especially in the EU, and particularly in Spain need to sign this one;
https://petition.parliament.uk/petitions/200601
It is to remove the discrimination exercised by the FCO as to which Brits abroad get Consular Assistance and who do not. It was a subject once supported by then Justice Secretary Jack Straw over a case in Portugal.
The problem is, FCO Consular help is discretionary, not statutory. OK if you are well connected, not if you are just an average Joe.
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/584047/FCO_Brits_Abroad_web130117.pdf
Page 4, quote; "Generally, there is no legal right to consular assistance. All assistance provided is at our discretion."
And because the FCO are a quasi government body not directly funded by the UK government, you can not even sue them for discrimination. And there have been some horror stories.
It is not about the FCO being your lawyers, it is about a) ensuring you have a lawyer / are given your basic civil / human rights and b) the extent to which the government should help all Brits equally, not just a lucky few.
And it is important now, as the UK government has vowed to protect British expats rights post-Brexit. Well, unless your rights with your own government are quantified and guaranteed, guess what? You have no rights to protect!
The petition costs nothing to sign, you do not go on any register except for the purpose of validating the petition, you are not spammed afterwards by the goverment (you just receive the outcome of the petition) and your name does not appear anywhere (there are no adverse consequences).
https://petition.parliament.uk/petitions/200601