Shoppping for exotic items
You know that kind of people who keep telling how bad the internet is and how you can get anything there? Well, next time you meet one of them, ask them to get you some cyanide (potassium cyanid or cyanogen chloride, that's the more common crystalline forms), that should shut them up simply due to the fact that you're not getting it anywhere. I should know, I've been looking for some for almost 2 days in a row and I just gave up.
Even eBay doesn't sell the stuff. Annoying pricks.