*Tumbling for Advice*

Que the sad face that I have seen often...

So there comes a time in every parenting career when you stop and question the real answer to a parenting problem.  Such as the one I have been facing when taking Hunter to Tumble for Tots.  I signed him up thinking he would love the tumbling experience.  The playing on fun equipment is what I thought would be the purpose of it all anyway.  Well I was wrong. Hunter seems to be the MOST shy kid in the class, refuses to do ANYTHING without me glued to his side, and flat out REFUSES to allow the teachers to help.  It has progressively gotten worse over the past month or so, and now I'm wondering, what can I do to stop this? I've been on the teacher side of things, wishing I could say something to "that" parent. Like "Hey Lady, leave your kid alone, let them learn on their own" but now I'm on the mom side thinking "If he wants me there, I want to be there for him... but I also want him to learn how to participate like all of the other kids do" so now I'm trying to figure out where to stand. Luckily tonight there were only two kids who showed up out of our class. I tried hard to get him to participate by first just me helping him.  Then I would only let him participate if I held one hand and one of the teachers hold the other hand.  This abruptly stopped him from participating in anything.  He became very stubborn and literally just watched the one other girl participate and have turn after turn. I eventually just took him out of area we were sitting in and sat against the wall with him saying that if he wouldn't participate with the teachers help, then we were not going to participate at all.  The group moved to one of Hunter's favorite activities and he really wanted to go. I told him he could go by himself, hoping he would get more confidence without me by his side.  It worked. He played by the teachers with only needing to look at me a few times for reassurance. He then moved to the next activity and I again told him I was going to stay by the wall and he needed to sit on the rug with the group. This worked I think in part because there was only two kids participating tonight. I feel guilty doing this any other night when this is a "parent assisted" class.  So, my question is, what would you do?  Suggestions, opinions, advice???