Apple - Trash missing from Dock

You shouldn't be able to delete the Trash folder from your Dock. To put it back, reset your Dock settings:

Open Terminal (/Applications/Utilities/Terminal.app)
Run the following command to delete the Dock preferences file:
```
rm ~/Library/Preferences/com.apple.dock.plist
```
Log out and back in.

I think you should first use killall Dock using Terminal.

This will reset your dock. If this doesn't work then you should download a 3rd party application such as DragThing.

Then logout and log back in, and start using DragThing.

If you need more help you can go on these websites : http://mac.bigresource.com/OS-X-Leopard-System-and-Trash-icons-gone-from-dock--t9R58eDJO.html

https://discussions.apple.com/thread/1494553?tstart=0

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