A hunger strike is a method of non-violent resistance in which participants fast as an act of political protest, or to provoke a feeling of guilt in others, usually with the objective to achieve a specific goal, such as a policy change. Most hunger strikers will take liquids but not solid food. In cases where an entity (usually the state) has or is able to obtain custody of the hunger striker (such as a prisoner), the hunger strike is often terminated by the custodial entity through the use of force-feeding. Fasting was used as a method of protesting injustice in pre-Christian Ireland, where it was known as Troscadh or Cealachan. Detailed in the contemporary civic codes, it had specific rules by which it could be used. The fast was often carried out on the doorstep of the home of the offender. Scholars speculate that this was due to the high importance the culture placed on hospitality. Allowing a person to die at one's doorstep, for a wrong of which one was accused, was considered a great dishonor. Others say that the practice was to fast for one whole night, as there is no evidence of people fasting to death in pre-Christian Ireland. The fasts were primarily undertaken to recover debts or get justice for a perceived wrong. There are legends of Saint Patrick, the patron saint of Ireland, using the hunger strike as well. In India, the practice of a hunger protest, where the protester fasts at the door of an offending party (typically a debtor) in a public call for justice, was abolished by the government in 1861; this indicates the prevalence of the practice prior to that date, or at least a public awareness of it. In the first three days, the body is still using energy from glucose. After that, the liver starts processing body fat, in a process called ketosis. After depleting fat, the body enters a "starvation mode". At this point the body "mines" the muscles and vital organs for energy, and loss of bone marrow becomes life-threatening. There are examples of hunger strikers dying after 46 to 73 days of strike, for example the 1981 Irish hunger strike.