So Avner is quite the interesting character, I figure most of us have had some fun with his antics. My group took a rather immediate dislike to him. Post what your group has either done to him or what kind of trouble he has caused.
When he showed up late at the docks insisting his horse and servants come along my PC's told him to come aboard so they could discuss it. Soon as he stepped on deck they pulled up the gangplank and set sail. He was allowed a private cabin though as no one wanted to share a room with him.
When he tried to buy an Olman female at the village of Renkrue the sorcerer/favored soul decked him. Zellimere (the sorcerer/favored soul) had been throwing a kegger on the beach and so was a good way towards drunk. He took great offense with Avner and in his inebriated state had no problem with laying him out. This of course pleased the village chief.