Based on ethnographic fieldwork on scuba diving, this article explores the social homogeneity characterizing this specific sport activity regarding questions on how deviance is treated within a group and on what grounds. The consequences of the dangerous context on the Dyad (one is always diving with a “Buddie”) in which the activity is performed, is analysed with the help of Georg Simmel (1950) and Erving Goffman (1967). The loyalty of the diving partner (the Buddie) towards the “right attitude” which governs the activity may be turned against the scuba diver who does not adapt. The Buddie is transformed from a friend into an opponent, who, by spreading anecdotes or rumours, questions the character of the scuba diver, which eventually may exclude him or her from the activity. The article also discusses how the “right attitude” in scuba diving is related to the so-called predominant masculine identity (Connell 1995) in a Swedish context.