One thing I've noticed about this bug is that it seems to get worse with explosions. For example, if it is happening and I hear a rocket explosion, at the same time I find myself searching the sky for butterflies. I really notice this on Omaha, where you can hear the booms from far away. Can't just be coincidence since it is so consistent.....
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"If your philosophy does not produce corn, I don't want to hear about it." - Red Bear