Gerald has a habit of swearing when he is mad. He doesn't just swear a little, he swears with every word he can think of and then moves onto body gestures. His swearing would definitely offend most people. But some people don't mind swearing, I know, I asked. Here is a video of people responding to the question: What do you think about swearing.
To sample Gerald's swearing, read The Consuming Fires of Gerald, published this Friday at The Book of Bartholomew..