Using DPDT as SPDT or SPST

[mars_bringer_of_war]

If I only need one pole of a DPDT switch, how do I treat the second pole? Do I need to ground any or all of it?
I'd like to avoid buying more SPDT switches, especially since I just traded a bunch away. 

[Mark Hammer]

Think of it like the other half of a sandwich you weren't particularly interested in.  Just ignore it.

[Processaurus]

You'll have an extra side of the switch waiting in there if the first pole craps out.

I've paralled two poles of a DPDT before, under the idea that if one side failed the other may still work.  But that doubles the chances of the switch failing if one side develops a short, which I don't know if that's a common way for footswitches to fail.  Maybe not.

Kind of like stacking your two sandwich halves on top of each other.

[mars_bringer_of_war]

Now I'm hungry. 
Thanks for the replies.

[Pushtone]

Check out the gut shot of this FTM.

I did just this for the octave switch.

http://www.diystompboxes.com/smfforum/index.php?topic=36392.msg486517#msg486517