Haha, another ES owner with a non-food-motivated dog!
We did some agility until the long drive got to me. Bear, also, couldn't care less about food. He was much more interested in everything going on around him and the food was second.
I tried chicken, dried liver, hotdogs. Nothing mattered to him. He would do what he needed to do, and I would praise him, but the treat, bleh.
Then....I began raising my excitement and voice tone with the treat offering, and suddenly he changed. Like I seriously embarrassed myself, ha!
I used Hebrew National beef hotdogs (yuck, but it was really smelly and beefy). He started taking the treats but it was a good bit of work.
Overall, though, he still isn't a big treat eater. Prefers the attention to the treat. Wondering if this is an ES thing?