attack damsels

[kellehar]

as i was cleaning up abit in my tank today both my yellow tailed damsels attacked me . they've never done this before and they would come after me repeatedly even with me waving them away. I have never seen them this aggressive they've always been kind of dosile towards me and most fish except the lawn mower blenny.
If any ideas of why they've become this ay it would be a great help.

thanks
Justin