Be very carefull about oiling a trekking pole. If it is a twist lock, you may never get it to lock again.
The Black Diamond Flicklocks are the most fool proof there is, although Leki is coming out with their Speedlock, an external locking pole.
Even though I usually only use one pole hunting, Like others have said, I often have a second on or in my pack for extra stability when carrying heavy loads of meat.
As far as Brad's cane, I'll have to wait until I'm as old as he is, oh wait, I guess I'm already older
