I'm thinking the bug you experienced was called a "train"
There are certain things different, but i'm not going to protest
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If you're completely alone, the user could have logged out.
But it's definately possible, what you suggested although I not experienced it and played in BB to lvl 11.
The gnolls pathing is a bit off, If I pull a mob it's gonna go and train loads.
I'm a bit tired. I had to read over my post to make sense of it..