Oh, for those glorious days of ignorance about the negative effects of smoking. This comes from the methods section of the original Festinger and Carlsmith paper on cognitive dissonance (1959):
“After the half hour on the second task was over, the (experimenter) conspicuously set the stop watch back to zero, put it away, pushed his chair back, lit a cigarette, and said:…”
Those were the days…
Festinger, L & Carlsmith, J. (1959) Cognitive Consequences of Forces Compliance. Journal of Abnormal and Social Psychology, 58, 203-210.