Bulk Red Pepper Flakes
Sam's, again doesn't have bulk but has giant containers.
Does this work? I have a black lab that is digging for oil in my backyard. I've tried red pepper powder but he still digs! I have an acre lot and some of it's left natural, you'd think he'd dig there,,,but NOOOOO. Right in the middle of the grass.
Try the International Market on Barron in Metairie, just off of Cleary (riverside of Vets). While IM doesn't sell true bulk (ie, from a bin and you buy as much as you need), it does sell very very large containers of spices.
3940 Barron St, Metairie, LA