This was debunked on snopes - but still freaky as hell.
But there is this...
Every time I got too close to the birdeater it would do three things. First, the spider would start rubbing its hind legs against the hairy abdomen. "Oh, how cute!", I thought when I first saw this adorable behavior, until a cloud of urticating hair hit my eyeballs, and made me itch and cry for several days.
If that wasn't enough, the arachnid would rear its front legs and open its enormous fangs, capable of puncturing a mouse's skull, and tried to jab me with the pointy implements.
LINK