Lord give me the strength to terminate

[playfelt]

If would start with the list of things he is no longer allowed to do and then start time outs or whatever for when he does them. Then share the list with the parents as an example of issues you are having and that for the child's sake start enforcing these expectations at home so it becomes automatic and therefore he won't forget as often. That will allow you to bring up the what he should be doing part. Then follow through and stop any play that is destructive. Parents often just don't realize how bad it is getting because they are doing the bulk of their playing at daycare and not at home. Then if nothing improves consider the replacement while you look in the meantime. Also consider setting something like June and end of school term as time for him to move to a group for older kids. I find by the time the boys are three I have had enough of them and what you describe is unfortunately normal behaviour for some of them. BUT that does not mean I have to let them use my toys in that way. I have one that often has to stop and take a break before he can play again - same issues not every toy is part of a crash it up derby.