Man-eating SAEs

Does anyone else experience this? My SAEs see me coming from clear across the
room, and can't wait for me to stick my arm in the tank, which I do quite
frequently of course. The second I stick my hand in, they attach themselves
to my arm and start nibbling away. They're really pretty voracious about it,
and it tickles. I've tried chasing them away, but to no avail. I've gotten
used to having 'em stuck to my arm and hand the whole time it's in the tank,
but it's a little wierd. I don't know if they like the salt on my arm, or
they're munching on dead skin cells or what. Ideas? Experiences?

Kent Elliston
Sacramento, CA