In order to avoid "legal" process [/prosecution]
As a game, amusement, etc.. [as an amusemental game, as play, etc.]
During ["]sex["] or ["]seduction["] When ["]running for["] political office
In any circumstance
[During postal correspondence]
When it seems ["]natural["] to do
When it is accidentally done
With old friends
As mischief
When meeting someone for the first time
When the assumption of the name has no effect whatsoever
When making or selling ["one's"] art [, literature, etc.]
When committing crimes
In order to "impersonate" someone
In order to avoid being "impersonated" yourself
Others
Individuality Collectively Realized & Abandoned