dstiles - 9:23 pm on Jun 7, 2011 (gmt 0)
The spec for websites includes an option to place favicon in another folder (eg /images). I did this (and still do) after a major pest came round ripping off icons several years ago.
Sadly, this spec seems to be one that few browsers and bots fully adhere to. Firefox is notoriously poor at it, though it does load it eventually.