Our troop has been through this three times that I can remember. My understanding is that volunteers are volunteers, and are not required to catheterize kids, wipe their butts or put up with their crap, bullying or disruption (or that from their parents) regardless of the organization. (:->) Rumor has it California may have rules to the contrary.
1) One parent repetitively told us if we didn't advance her kid, that she would pull him out.... Haven't seen her in a couple of years. It's not about not wanting to help, it's about helping the most you can.
2) We had an uber ADHD kid at summer camp who was also vocally abusive. The second year we asked one of the (totally pain in the a$$) parents to come provide oversight. The parent came, found it was too much trouble, suggested one of the older kids (who paid to come work on merit badges) could take care of his kid, then the parent left for the Casino for the last 3 days… The next year, the parent was required to be there the whole time, but declined, noting we should be willing to take care of his kid on our vacation.
3) The last one was last year at Philmont. We asked parents what we needed to know about their kids before going, noting really revealing. One of the 17 yr old kids was ADHD, psychotic and Aspersers. Not a bad kid when he took his meds. He quit taking the meds, got violent, complaining about everything, refused to p00p (at least for a few days… then biophysics took over in the middle of the trail to Beaubien:) making it a very ‘memorable trip’ for all. We took a satphone, and called his parents who went to Hawaii for 2 weeks. They swore he was taking his meds, so we should spend more time with him, spend half an hour each morning on what the schedule was for the day, then intermediate discussions through the day. Turns out the kid hid his meds. As a result for 2009, we’ve had an attorney come up with a document that basically lays out what our rules are: We want everyone to have the incredible experience that Philmont can be, and not have to deal with parents looking for a “Baby Sitter of America”. If the adults decide he's not cutting it, he's coming back on your nickel, no questions asked. I don't mean to sound callous, but you have to make a choice: Do you want to do the most good for the most or babysit for a kid who may need help, but their parents need more?
I can’t help the most kids if I’m having to deal with one who probably shouldn’t be there. If you’re not comfortable with a particular trekker, then I would have no problem not taking responsibility for them.