There are plenty of trainings one has to take at CERN to get access to various facilities.
Some of those are given in French.

I signed up for one that apparently is in English, at least the confirmation Email says so. But in reality, its in French.
So I tried to clarify by talking to the training-center people. Suspicion confirmed.

The fun part, is that they send me a email, in French(!), telling me that they are sorry that the training is not in English. Which I could only read with help.