without the boomerang effect of under-indulgers increasing their drinking. The social norms that guide people are not always normal for everyone. Behaviors that are abnormal for most people may be considered normal for a subgroup or subculture. For example, normal college student behavior may be to party and drink alcohol, but for a subculture of religious students, normal behavior may be to go to church and pursue religious activities. Subcultures may actively reject "normal" behavior, instead replacing society norms with their own. What is viewed as normal can change dependent on both timeframe and environment. Normality can be viewed as "an endless process of man's self-creation and his reshaping of the world." Within this idea, it is possible to surmise that normality is not an all-encompassing term, but simply a relative term based around a current trend in time. With statistics, this is likened to the thought that if the data gathered provides a mean and standard deviation, over time these data that predict "normalness" start to predict or dictate it less and less since the social idea of normality is dynamic. This is shown in studies done on behavior in both psychology and sociology where behavior in mating rituals or religious rituals can change within a century in humans, showing that the "normal" way that these rituals are performed shifts and a new procedure becomes the normal one. Since normality shifts in time and environment, the mean and standard deviation are only useful for describing normality from the environment from which they are collected. Sexual behavior As another example, understandings of what is normal sexual behavior varies greatly across time and place. In many countries, perceptions on sexuality are largely becoming more liberal, especially views on the normality of masturbation and homosexuality. Social understanding on normal sexual behavior also varies greatly country by country; countries can be divided into categories of how they approach sexual normality, as conservative, homosexual-permissive, or liberal. The United States, Ireland, and Poland have more conservative social understanding of sexuality among university students, while Scandinavian students consider a wider variety of sexual acts as normal. Although some attempts have been made to define sexual acts as normal, abnormal, or indeterminate, these definitions are time-sensitive. Gayle Rubin's 1980s model of sexual 'normality' was comprehensive at the time but has since become outdated as society has liberalized. Regulation A disharmony exists between a virtual identity of the