[Zaihur]

Ok I'm a noob, I fixed it changing the logical thing. Probably there is a way to do with the last code part bt this works well:

        public override void OnSpeech(SpeechEventArgs e)
        {
            if (!e.Handled && e.Mobile.InRange(this.Location,3))
            {
                if (e.Speech == "...")
                {
                    if (((PlayerMobile)e.Mobile).Skills[SkillName.Stealth].Base > 49 | ((PlayerMobile)e.Mobile).Skills[SkillName.Lockpicking].Base > 49 | ((PlayerMobile)e.Mobile).Skills[SkillName.Hiding].Base > 99)
                    {
                        e.Mobile.AddToBackpack(new CustomItem());
                        this.Say("...");
                    }
                    else
                    {
                        this.Say("...");
                    }
                }

            }