I like the "Humans are insane" series of threads.

Humans are pretty close to immune to memetic viral attacks. In other cultures, memetic attacks are devastating weapons of war, that are carefully researched in hidden facilities where the researchers go through daily psychological analysis to keep the attack from escaping- and occasionally it does anyway, and they have to vaporize the sector. Humans use them to sell hamburgers. Human memetics is the flat-out most advanced in the universe, and they don't even have clinical immortality yet. Individual humans can make memetic attacks untrained.

http://suptg.thisisnotatrueending.com/archive.html?tags=Humans