Oh, where can I begin....3-1/2 yr old grandson, has classic ODD characteristics. Living with us (grandparents) his 2yr old sib for 6wks now. Parents in another state...they have substance abuse issues, personality disorders, PTSD, depression, you name it. Obviously this is the cause of the behavior problems. We are seeing a child psychologist for the first time next week. Is 3 too young to have ODD ? I am quickly becoming worn out and frustrated with dealing with this little guy. By the way, he attends daycare 1-1/2 days a week...loves it, and is well behaved there. He is consistently extremely hard to handle otherwise. We had the kids for a month in Oct., he was not a behavior problem then, but has always been sort of hyper. Any wisdom you might share?