Dangers of little knowledge of simple chemistry
Whoever likes movies at all must have at least once seen The Fight Club.
If you are one of those people and paid enough attention you must have had noticed that there is a mention of making of nitroglycerin at home.
It's easy to make it in theory, but I have always thought that obtaining the basic elements that you need (especially nitric acid) would be rather difficult, never mind making sure that the reaction is safe - work with corrosive acids and bases is very dangerous - so I filed it under "curious" and forgot all about it.
Then I stumbled into instructions of obtaining nitric acid on You Tube.
I am seriously scared now. Knowledge, although beautiful, is a dangerous thing. Please don't blow me up, OK?