We never at any time saw a Balinese annoyed because he was interrupted in the course of some series of acts. The children, however, can be frustrated and have temper tantrums when they are frustrated. The problem remains as to how the children are modified so as to render them unfrustratable in these terms. The hypothesis invokes two types of switching from one sequence to another. The first type is called 'substitution' and here the reinforcing act is comparable to that of the original series.
Substitution is defined in terms of partial satisfaction of the original instigators.
The second type is the switch to aggression about which it is assumed that the reinforcing goal is fundamentally different from that of the original interrupted sequence. So far, I have only simplified the formulations by reducing the number of entities, but I must add one complication. In order to bring the aggression sequence under the heading of 'substitution' I must assume that human acts are primarily and essentially inter-personal acts. I would say that the common element between eating the ice cream cone and hitting the mother is that both are events in a behaviour sequence involving the child and the mother. I would say that the receiving and perhaps the eating of the ice cream is for the child a pleasant small love climax in his relationship with his mother, while the temper tantrum is a hate climax in the same relationship.