Aloha man
I had 1 'thats stuffs poison' (while keeping his 40 a day habit) acquaintance (re: douche bag who is a friend of a friends husband, who just wanted to be part of the group, y'know the 'im right so all should listen to me' types) who tried to make fun and alienate me from the usual group of friends. But as the weeks passed and more of the group saw how much my fitness had improved and the money i was saving decided to give it a try and what do you know they all started vaping (bar 2 who said it was too much work, seriously). The last time we had a get together he's sitting there with a starter kit bragging about how much money he was saving and that he was getting a 'unknown probably bullshit mod i've never heard of' (i count myself as quite knowledgeable compared to my friends simply because i've been doing this longer and have a dire case of shinyitis) which was going to cost him £200. Which the group collectively called him a dumbass for spending that much without knowing what he is doing.
He still insists that he is only going to use tobacco flavours (then whines that they dont taste like cigarettes) and that he knows the best places to get liquids etc.
TL;DR - Everyone knows at least 1 douche
In regards to the whole 'vaping anti-freeze' argument Propylene Glycol is used in everything from foods and mouthwash to cosmetics, it is only toxic when it is at 1 gram per litre of blood (about 5 litres) and has a half-life of 4 hours. since 1 bottle of 10ml liquid is say standard 70% PG that means about 7ml per bottle (we'll just ignore nicotine content for this example) so you would need to vape about 2/3rds of a bottle in under 4 hours to get close to the lowest toxic level (which will cause upset stomach and possible sickness). There are plenty of studies about it being tested in far higher doses than you will come near to experiencing and little or no adverse side effects.
Any deaths related to it have been inexplicable or incredible cases (i.e. a woman who drank 2 litres of anti-freeze).
If you buy from reputable retailers they use food standard grade liquid to make sure it's safe.
I bet your friend 'fitness fanatic' has taken suppliments before, there are probably more poisonus toxins in some of the stuff he's used but in such small doses (like vaping) there is no adverse affects.
TL;DR - Unless this guy has a degree in biochemistry and has researched this like all the studies which are widely available, tell him to fuck off (or use nicer terms)
Think i'll climb down off my soap box now
