function teste(cid)
    if not isCreature(cid) or getCreatureStorageValue(cid, 7123) < 1 then
        return false
    end

    doCreatureSay(cid, "oi")
    addEvent(teste, 250, cid)
end

function onUse(cid)
    if getCreatureStorageValue(cid, 7123) < 1 then
        setPlayerStorageValue(cid, 7123, 1)
        teste(cid)
    else
        setPlayerStorageValue(cid, 7123, -1)
    end

    return true
end