How To Make It So A Person Doesn't Spam The onTouched Event?

Here is what I did, but it still spams the onTouched event.

local debounce = false 

function onTouched(hit) 
    if debounce == false then 
        debounce = true 
        script.Parent.Sound:Play()
        wait(4)
        debounce = false 
        else debounce = false 
    end 
end

script.Parent.Touched:connect(onTouched) 

Thank you for your time! Your awesome!