function UTIL.DefineDestructor(C,s)C.AncestryChanged:connect(function(p,A)if p==C and not A then s()end end)end
---will call func when instance's parent is changed to nil
function UTIL.DefineDestructor(instance, func)
	instance.AncestryChanged:connect(function(child, parent)
		if child == instance and not parent then
			func()
		end
	end)
end
