He discussed the positive image that individuals have of themselves in his essay "
This author discussed situations in which chances could be taken in his essay "Where the Action Is".  He discussed the positive image that individuals have of themselves in his essay "On Face-work", and he divided social devaluation into bodily, moral, and tribal varieties. He investigated how individuals structure their own perceptions in Frame Analysis. This man argued that patients and doctors in the titular institution took on predictable and regular roles in Asylums, his study of mental institutions. This man's most notable work compares life to a stage and discusses how social actors choose props and costumes to define themselves. For ten points, name this symbolic interactionist and founder of dramaturgy, a Canadian sociologist most notable for writing The Presentation of Self in Everyday Society.
This author discussed situations in which chances could be taken in his essay "Where the Action Is".  
Erving {Goffman}