Help with Character size?

So I want to make my character's size bigger with a script which is in a hopper bin.I don't get any error and it makes it bigger, but I die when it does that.

wait(3)
Player = script.Parent.Parent.Parent
c = Player.Character
n = script.Parent
local debounce = false
mouse = Player:GetMouse()

function pizza(mouse)
    if debounce == false then
        debounce = true

        c.Head.Size = Vector3.new(20, 10, 10)   
    c.Torso.Size = Vector3.new(20, 20, 10)
    c["Right Arm"].Size = Vector3.new(10, 20, 10)
    c["Left Arm"].Size = Vector3.new(10, 20, 10)
    c["Right Leg"].Size = Vector3.new(10, 20, 10)
    c["Left Leg"].Size = Vector3.new(10, 20, 10)

    end         
    wait(10)
    debounce = false
end




function onSelected(mouse)
    mouse.Button1Down:connect(function() pizza(mouse) end)
end

n.Selected:connect(onSelected)