Gilbert's working relationship with Sullivan sometimes became strained, especially during their later operas, partly because each man saw himself as subjugating his work to the other's, and partly due to their opposing personalities. Gilbert was often confrontational and notoriously thin-skinned, though prone to acts of extraordinary kindness, while Sullivan eschewed conflict. Gilbert imbued his libretti with "topsy-turvy" situations in which the social order was turned upside down. After a time, these subjects were often at odds with Sullivan's desire for realism and emotional content. In addition, Gilbert's political satire often poked fun at those in the circles of privilege, while Sullivan was eager to socialise among the wealthy and titled people who would become his friends and patrons.