Debian Programming :: Command Followed By And Still Closes With Terminal?

Running debian wheezy. I noticed recently, whenever I fork a process using "&" from a terminal, such as

Code: Select allleafpad &

it starts up, shows the processid in the terminal, but every time when I close the terminal, leafpad gets killed. However, I create a simple bash script,

Code: Select all#!/bin/bash
leafpad&
exit

The script launches leafpad, then exits out leaving leafpad running, as it should. Is what I mentioned above normal? I'm confused, because I think I used to be able to do this in terminal without it depending on the terminal to stay running.

I guess I'm remembering wrong. As it turns out, commands begun on terminal get closed with terminal unless, as mentioned, you use nohup or start subshell. Process hierarchy and tracking etc.