Ah yes, the bots. Uncontrolled by human hands as they are, those...

Ah yes, the bots. Uncontrolled by human hands as they are, those emotionless bots who swoop down out of nowhere and start mindlessly buying or selling, with no regards what so ever to the share price. The bots have no profit motive and behave in ways beyond the ken of us humans. The government should do something, or maybe it's the job of the UN to combat this alien invasion, because that's what it is! It's obvious no humans are involved. No one ever says "it's those pesky humans again, parcels of 1000 shares, damn their love of round numbers!"