See if it were me, I would term. I would have to, especially after what I just went thru. If it went on for months and you tried everything to correct the actions and nothing was working, and thru started would term. Especially if the parents weren't on board. The kids are old enough to know better. At age 4, or almost 4, kids should not be spitting, hitting, kicking, moving furniture, disrespecting their DCP or anything.