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Because of Isis ' anti-technology and self-denying puritanical beliefs, she has to use a Sitting Board ( a hard board she can put over the comfortable seats in cars and other means of transportation in order to deprive herself of cushioning ).

She also uses the technique of Back-Bussing in order to avoid paying for a ticket on the bus.

This consists of getting on buses, and when the conductor comes along, asking for a ticket in the opposite direction while looking confused.

This normally results in being allowed to get off at the next stop and pointed in the right direction.