How exactly does blacklist.add work?

[ski]

I have the following code in my Pull and Combat sections, and the following happens:
- Bot targets player that's out of range
- Log says "Blacklisting player"
- Pet is returned
- Target is cleared

Now that's all well and good, but it repeats that over and over... how does the blacklist actually work? I would think it would not target a Guid that is on the blacklist, but it seems to keep targetting over and over.

            if (Me.GotTarget &&
                Me.CurrentTarget.IsPet) {
                slog("Battleground: Blacklist Pet {0}",Me.CurrentTarget.Name);
                Blacklist.Add(Me.CurrentTarget.Guid, TimeSpan.FromDays(1));
                Me.ClearTarget();
                lastGuid = 0;
                break;
            }

            // test, if in battleground and someone is out of line of sight, blacklist for 5 seconds
            if (Me.GotTarget && !Me.CurrentTarget.InLineOfSight){
                slog("Battleground: {0} out of Line of Sight, blacklisting for 3 seconds", Me.CurrentTarget.Name);
                Blacklist.Add(Me.CurrentTarget.Guid, TimeSpan.FromSeconds(3));
                Me.ClearTarget();
                Lua.DoString("PetFollow()");
                lastGuid = 0;
                break;
            }

            if (Me.GotTarget && Me.CurrentTarget.Distance > SpellManager.KnownSpells["Shadow Bolt"].MaxRange - 1) {
                slog("Battleground: {0} out of Range ({1} yards), blacklisting for 3 seconds", Me.CurrentTarget.Name, Me.CurrentTarget.Distance);
                Blacklist.Add(Me.CurrentTarget.Guid, TimeSpan.FromSeconds(3));
                Me.ClearTarget();
                Lua.DoString("PetFollow()");
                lastGuid = 0;
                break;
            }
            // if target has bubble up, blacklist for duration
            if (Me.GotTarget && Me.CurrentTarget.Buffs.ContainsKey("Divine Shield")) {
                slog("Battleground: {0} has Divine Shield, blacklisting for 10 seconds", Me.CurrentTarget.Name); 
                Blacklist.Add(Me.CurrentTarget.Guid, TimeSpan.FromSeconds(10));
                Me.ClearTarget();
                Lua.DoString("PetFollow()");
                lastGuid = 0;
                break;
            }
            // if target has iceblock up, blacklist for duration
            if (Me.GotTarget && Me.CurrentTarget.Buffs.ContainsKey("Ice Block")) {
                slog("Battleground: {0} has Ice Block, blacklisting for 10 seconds", Me.CurrentTarget.Name); 
                Blacklist.Add(Me.CurrentTarget.Guid, TimeSpan.FromSeconds(10));
                Me.ClearTarget();
                Lua.DoString("PetFollow()");
                lastGuid = 0;
                break;
            }

 

[ski]

If you get attacked by a pet wow autmatically set's ure target to the pet and then the bot will try to kill it

My issue is more that the bot targets a player that is blacklisted over and over. It targets, clears, targets, clears, etc.