Back Off of Geralt Brah.

I have had a few really odd occurrences in my The Witcher 3 experiences.  Some of them have been somewhat hilarious bugs or glitches that make for a pretty good laugh--once, while at the very masquerade ball I mentioned earlier, Geralt's arms were completely invisible.  All you could see were weird, disconnected hands.  Cool trick witcher!  Another of my favorites have been bugged city inhabitants.  One of those inhabitants was ice skating through the main square in Novigrad and at the end of his hand was a random, floating horizontal head.  It looked like a freaky, surreal painting.

Geralt rides through Novigrad.  

The bug/glitch that cracks me up the most (and I'm not sure it's a bug or glitch or if I inadvertently did something) is this one witch hunter/guard in Novigrad who seems to have a personal grudge against Geralt.  Every time I enter the square this guard becomes aggressive and attacks.  This is frightening since the guard is level 31 and Geralt is nowhere close to that level.  What did I do to make this guy want to kill Geralt on sight?  There had previously been an instance where some witch hunters were yelling at a peasant and I ran through the middle of the group.  Apparently this pissed them off something fierce and now one guy has it out for Geralt.  Even though he's level 31, Geralt can generally pummel him down into the ground.  Unfortunately he just keeps respawning and lurking in wait for Geralt to obliviously round a corner.

I've sort of had it out for the witch hunters.  They seem like evil bigots bent on the destruction of anything remotely magic so I feel the need to slaughter them when given the choice.  So maybe it's an acceptable fact that this one guard wants Geralt dead.  Fortunately, I think I'm mostly done with the Novigrad area and won't have to see that blaring red dot on my map every time I go to a certain area.