Oh he was a nightmare. We were camping by a river at level 1. In the night we are attacked by goblins, so we attempt to run across the river because these goblins couldn't swim. BAM it was a magical river that dropped you immediately unconscious with two failed death saves, and guess what, now...
I had a GM who strongly believed the game was about beating the players. He always altered the story, or environment to make us look foolish and to 'win' against us. I played three games and quit