Although Lili is bored to tears with weave poles, she does, on occasion, lead through them (as opposed to following a treat). Then she looks over her shoulder at me as if to say, "See, Mom? I understand what you want, it's just too boring for a smart little cookie like me!"
After her initial distrust of it, the tunnel has become one of her favorite events. She'll go in on command even if I'm not guiding her to it
Some pictures of Lili perfecting her tunneling skills:
Lili popping out of the tunnel...
and popping back in...
and popping back out again! She does enjoy her tunnel now!