Yes, I think that is the general consensous Mike. Welcome to EADD too.
Going on about smells, I can smell good coke a mile off, OK, well maybe not an actual mile, but I have been known to ask friends about coke in their pockets before they have told me they have picked up, not even large amounts either.
I think drugs generally stink though, coke, MDMA, pips, meph all have very distinctive smells that you don't have to snort to get! *snip* My only grace was that people don't recognise the smells so it goes under the radar. I suppose its like seeing somene fucked up on a night out, before I was introduced to the drug scene I just assumed that everyone was drunk, then you get educated and see how people are really fucked!