You do not really provide enough information to determine if your son has a cause of action; you certainly do not personally have one as you did not see the accident. Was the glass inside the dumpster; if so, there probably is no cause of action as your son should not have gone into the dumpster [depending upon the state you are in, below a certain age a plaintiff can not be found liable for comparative negligence so as to reduce the amount of recovery, but you still must establish that the defendant was negligent]. If the glass was inside the dumpster, I would assume garbage pick up is only once per week so the glass being there for less than a week is not negligence.Merely because the dumpster was not in an enclosed area does not establish negligence as those areas normally are left unlocked so tenants can use the dumpster. Your child probably knew he should not be playing there [so you might be negligent yourself] and the lack of a sign saying he should not be there probably was not a cause of the injury as he would of ignored it. You do not indicate whether there is any scarring, the amount of medical bills, etc. It sounds like a very weak case that few attorneys would be willing to take on except to charge you on an hourly rate for a demand letter. If you have medical insurance that covered the bills and there are no permanent injuries, it does not appear you have a worthwhile case. You can make a demand for reimbursement against the HOA but don't expect them to pay anything.
Answered on Sep 14th, 2015 at 5:22 PM