I started working with Charlie on the head nod. At first, I was trying to click when he followed my hand up, but he was not getting it all. So recently, I have been doing something I saw on youtube, where he touches the ironing board above him. That part is going great because I can get him to nod a couple of times in a row before I reward. But I just can't get him away from the board. I tried moving it up higher, but he just wants to touch the ironing board. He is really smart, but easily frustrated. When he can't figure out what I want, he just does a roll-over (his least favorite trick and an act of desperation). Any ideas?