I decided that I'll answer this, because I was one of those people. I think you have to keep in mind that people are in different places in their lives, as well as, frustrations. Your frustration does not equal my frustration which means how you deal with it and what you're able to do applies to you only. There were a lot of days that I didn't show up, a lot of days that I left early, and a lot of days I didn't do the homework. The fact is.. I still learned quite a bit, I can still talk intelligently about it, and I'm quite good with some of the skills specifically opposite actions, coping ahead, mindfulness, and understanding emotions. I didn't get much out of distress tolerance, and I'm quite weak in interpersonal relationships for a few reasons. I've also learned that being successful with some of the skills has brought about a new dysfunctions within me. It's not better, it's not worse it's just a different kind of "not normal".

So while the person may not be meeting your expectations or doing things the way you do, it doesn't mean their not learning...