If cannabis was legalised, at least the tax would hopefully go towards the huge numbers of lung cancer treatments it causes and puts the NHS under extra strain for and if available in oils, edibles etc it would help out a ton of people living with the many health issues it has proven to relieve the pain of. Sadly, no matter what the government, I can't ever see it being legalised in the UK, which is a shame imho. Regarding those canisters, unfortunately I see them all over the place in ED, regularly on our street too and it's something that is obviously getting worse and worse.