Removable? hard drive

I've recently bought a brand new HD, installed and formatted it. Actually, a friend of mine did the installation, but I looked over his shoulder, and everything was cool.
I now have two hard drives. The new one has been long formatted, and stores data fine.

Now, my problem is this:



That is an option to safely remove an internal hard drive. Maybe I'm just insane, but that shouldn't be happening. It's a SATA 2 HD, and it was properly connected to the mobo and the power supply.

Any ideas as to why I can "safely remove" an internal hard drive?
It's more a question of me accidentally clicking on it and stuff going berserk than it not working correctly right now. The drive, to the best of my knowledge, is behaving as it should. I've already put some files on it, and they load just fine.

*shrugs*
Have at it.

Jam it back in, in the dark.

Oh, cool. Thank you kindly for the swift reply.
I just don't understand why someone would want to unplug and move their drive around inside the case ... while the computer is on. Perhaps SATA HDs are meant for servers, where installing/moving motherboard components while the system is running is common.

Sweet, now the only thing that remains is to remove that icon. It's kind of annoying.

There's nowhere I can't reach.