[JerseyHighlander]

Pepper Spray has 3,000,000 scovilles. Bhut Jolokia has 1,000,000 scovilles. I really doubt the elephants will start using the rope fence for dental floss. ---2,000,000–5,300,000 Standard US Grade pepper spray. ---855,000–1,041,427 Naga Jolokia

[RightWhale]

I don’t have a lot of experience feeding chili to elephants. Ravens and squirrels seem surprised the first time they taste it, but they come back and eventually prefer the taste.