[My thanks to Uriah for the following]
Issy and Jacob have finally left Russia and are on their way to London. On the way, they stop off in Paris for some sight-seeing. As they near the Arc De Triumph, they see their old friend Moshe walking towards them. They are keen to talk to him and so they both shout out his name.
The shouting embarrasses Moshe and his face goes bright red. When they meet, Moshe quietly asks them, “Please, my friends, here I am not Moshe but Maurice, and I am not Pisher but De la Fontaine.”
Credit: David Minkoff, A Word In Your Eye