My sister in law has one autistic (PDD) 5 yr old son and a 3 year old with other unspecified issues. Her husband is up for a family trip to WDW but she says no way. No one else has a problem helping her deal with meltdowns, etc but she shelters the children from any such activities. Nephew did go to a waterpark with dad and had a great time. Any suggestions on how to get her to not miss out on the fun.