Why won't the Humanoid get knocked back when touched by the handle?

local Tool = script.Parent
local Player = Tool.Parent.Parent
local Character = Player:WaitForChild("Character")
local Humanoid = Character.Humanoid
local KnockbackSpeed = 135
Tool.Handle.Touched:Connect(function(hit)
	if hit and hit.Parent == Player.Character then return end
	if hit and hit.Parent:FindFirstChild("Humanoid") then
		local hum = hit.Parent:FindFirstChild("Humanoid")
		local bv = Instance.new("BodyVelocity")
		bv.Parent = hum.Parent.HumanoidRootPart
		bv.Velocity = Player.Character.HumanoidRootPart.CFrame.lookVector * KnockbackSpeed
		bv.MaxForce = Vector3.new(math.huge,math.huge,math.huge)
		game.Debris:AddItem(bv,.4)
		end
		end)