Can I hide a drive from the filesharing network, even from admin acct? OSX 10.10

I have an external USB drive mounted on my computer. Can that drive be hidden from the network? If I want to make it invisible to another user on a different mac on the network (even with admin credentials to my computer) that can still otherwise connect to me and mount my internal drive, etc.

Just so it wouldn't show up in a finder window after the remote admin connects to my computer?
Hmmm... interesting question. I haven't tried this personally but it looks like you can edit /etc/fstab and add the UUID of the disk with the 'noauto' flag:

http://www.radiotope.com/content/os-x-hiding-and-mounting-partition

I was going to propose changing permissions to prevent the other user from having access to the files. But, as tubedogg mentioned, if the user is an admin they can undo anything you've done.

Perhaps it's best to eject it when you're done if you're concerned about other admins having access to the data?