Function with debounce triggers twice, I have no idea why

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#1

I made a tool that plays a “slap” animation on your character, and damages anything touching their right hand. I split this feature into two scripts to ensure it replicates across the server.
Here are both scripts:

-- SlapScript (LocalScript, Tool)

local tool = script.Parent
local anim = script:WaitForChild("SlapAnim")
local character
local hum
local player = game.Players.LocalPlayer
local slapUpdateEvent = game.ReplicatedStorage.UpdateSlap

local RESET_TIME = 0.5
local debounce = false

local SLAP_DMG = 5

tool.Equipped:Connect(function()
	character = tool.Parent
	hum = character:WaitForChild("Humanoid")
end)

tool.Unequipped:Connect(function()
	character = nil
end)

tool.Activated:Connect(function()
	if not debounce then
		debounce = true
		
		hum.WalkSpeed = 0
		
		slapUpdateEvent:FireServer(hum, anim, SLAP_DMG)
		
		script.Slap:Play()
		script.Scream:Play()
		
		wait(RESET_TIME)  -- Wait for reset duration
		
		hum.WalkSpeed = game.StarterPlayer.CharacterWalkSpeed
		
		debounce = false
	end
end)

And the second:

-- UpdateSlap (Script, ServerScriptService)

game.ReplicatedStorage.UpdateSlap.OnServerEvent:Connect(function(player, hum, anim, SLAP_DMG)
	local animTrack = hum:LoadAnimation(anim)
	animTrack.Priority = Enum.AnimationPriority.Action

	animTrack:Play()
	
	local debounce = false
	local slapCount = 0

	hum.Parent.RightHand.Touched:Connect(function(hit)
		slapCount += 1

		if hit.Parent:FindFirstChild("Humanoid") and not debounce then	
			debounce = true			
			if hit.Parent.Humanoid.Health > 0 then
				hit.Parent.Humanoid:TakeDamage(SLAP_DMG)
				game.ReplicatedStorage.PlayerStats[player.Name].Slaps.Value += 0.5	
					
				animTrack.Stopped:Wait()

				debounce = false
				
				slapCount = 0
			end
		end
	end)
end)

To mediate this, I halved the damage and points for each slap. However, this is not a permanent solution, because it makes the game look janky and could cause problems later.