Urban Legends (Ia I Frankel)

It is said that in the Physical Theoretical Institute in the 30s, a certain experimenter caught up with him in a corridor and showed him a curve obtained from an experiment. After a minute's thought Ia I gave an explanation for the form of this curve. However, it was explained that the curve had accidentally been turned upside down. The curve was put into place and having thought it over he explained this behavior too.

-- Related by V. Berezinsky in his article "How a theoretical physicist works," from Paths into the Unknown No. 2, 1968.