Jack the Potato said:
WELL *cracks knuckles*
First off - well done for the open mind. So many individuals are prepared to shut down anything that doesn't adhere to their perceptions of ideal time/money expenditure.
So without much further ado;
Drinking; inhibitions are lost and becomes the lubricant of many a social situation that wouldn't have been possible otherwise.
Some of the best people I've met (and in some cases, the best periods of time in my life - and I'm sure loads to follow) have been spawned whilst under the influence.
A double edged sword of course - you can just as easily go too far and end up making a fool of yourself, something which I and pretty much everyone I know has done. For example - I was twenty years old and wet myself overnight. Deplorable at the time, but hilarious now. Well to be true, I thought it hilarious from the moment I woke up - life's for laughing and most of all at yourself.
Smoking; this comes hand in hand with drinking for me - with a very small exception I only engage once drunk. Especially since the anti smoking ban (which should have been dubbed the "Cage the Smokers" initiative) this has become a social weapon. For want of a better way of putting it, fellow people are trapped with you for a guaranteed period of time in a non threatening scenario. With five minutes in your pocket - it is amazing what you can plant and water them to grow into.
Drugs; I've dabbled. With legal highs as well as maybe not so legal. Nothing heavy or intravenous however. Different experience - on the whole not for me. I'm glad I've had my experience, as again, life is for experiencing. I'm not going to go into any more detail on the matter, as drugs aren't really something to openly discuss and by extension accidentally endorse - of which for the record I do not.
An aside; once I've found a prospective partner that I want to spend a considerable greater period of time with than "until I get bored" I can see myself calming down, a lot. In my humble opinion, these activities have no place in a serious relationship together or singled out. You're not aware of your actions, and therefore not the consequences. I've seen people's lives washing machine'd by one night of "one more drink".
So there we are, a suitable centenary post as well if I say so myself.