Demon summoners in the Realm use a process called "abscissic binding." This takes advantage of naturally occurring flaws in the demon psyche to force them into service. Essentially, it redefines the relationship between the summoner and the demon. Whenever the new relationship is challenged, the summoner's control slips a bit. The abscissic templates are as follows:

The Courtesan
The Ecstatic
The Functionary
The Horror
The Hunter
The Killer
The Slave
The Vizier
The Warden
The Sufferer