Spiders on Acid
The pictures below are of spiders' webs built under the influence of various substances. If you interpret the results of this NASA inspired research as suggestive of relative impairment, then perhaps we should be more worried about the effect of world's most popular drug, caffeine.
It's claimed that the webs built on psychedelics (e.g. LSD) are more geometrically perfect than normal.
Normal Spider's Web:
Spiders on Acid ( LSD):
Sleeping Pills (Chloral Hydrate):