 May an agent deliberating assign probabilities to her possible acts? Yes, a deliberator may sensibly assign probabilities to any events, including her acts. Causal decision theory may accommodate such probabilities by forgoing their measurement with betting quotients. According to that method of measurement, willingness to make bets indicates probabilities. Suppose that a person is willing to take either side of a bet in which the stake for the event is \(x\) and the stake against the event is \(y\). Then the probability the person assigns to the event is the betting quotient \(x/(x + y)\). This method of measurement may fail when the event is an agent’s own future act. A bet on an act’s realization may influence the act’s probability, as a thermometer’s temperature may influence the temperature of a liquid it measures.