That wasn't pointed at you or anyone in particular at all Alex, it was simply an observation that some smokers will walk right up to you at your scope then stand there smoking and talking and generally making it an unpleasant experience, and as mentioned leaving particle deposits on glass, mirrors etc, which I am sure are NOT good for them at all.
I have even thought of putting a "No Smoking Here" sign on my scope - but who'd see it in the dark?
Great idea h0ughy .... maybe I could take it a step further and form the words themselves from a whole bunch of well laced superbright LED's! That would be sure to get SOME kind of response.
What I hate - you read a current astronomical magazine, like the product and ring the vendor to buy it only to find out that its 10, 20, 30, 40 percent more expensive than advertised...needless to say the add in the magazine mentions nothing about prices being subject to change or that they are effective at specific dates etc...
This is close to false advertising, if they can not guarantee prices for ANY length of time they should not be quoted at all.