In contrast to the indri, the nocturnal aye-aye is considered an evil spirit and symbol of misfortune.  An aye-aye in the village foretells death.  A man who the aye-aye points at with its bony middle finger (used for digging grubs out of crevices) is doomed.  Aye-ayes are even reputed to creep into homes at night and use those middle fingers to sever the aorta of sleeping humans.  The sad result of this is that aye-ayes are often killed on sight, their bodies hung as a warning to other “evil spirits”.