local part = script.Parent
local active = true
local function onTouch(other)
   local humanoid = other.Parent:FindFirstChild("Humanoid")
   if active and humanoid then
      active = false
      humanoid.WalkSpeed = 48
      wait(3)
      humanoid.WalkSpeed = 16
      active = true
   end
end
part.Touched:Connect(onTouch)