Fish
From MUME
With the right equipment and some time on one's hands, one can fish the rivers and lakes of Arda. To do so you must have either a sturdy fishing pole or a fishing net woven of strong thread.
With a pole, you will simply need to hold it and type FISH. If you prefer using a net, you will need to hold it and type USE NET. Once you have cast your net into the water, you should let it sit a little while and then pull it in quickly! With any luck, some curious rudd or a stray grayling may have wandered into it's grasp and onto your supper plate.
Example:
> fish > use net, get net