They tell a funny and instructive story about how one day took an entrance exam at the Faculty of Physics at the University of Sorbonne.
On the table of the examiners was installed a pendulum, the applicants needed to measure how it fluctuates, and on this basis to calculate the acceleration of free fall g.
Naturally, most of them got g=9.8, and only two came up with the question:
What fucking thing? It is g = 11.
They were counted because the insidious examiners hid a powerful electromagnetic under the table.