While standing on a balcony of the
Montréal City Hall,
French President General Charles de Gaulle cried out "Vive le
Québec libre!" during a state visit in 1967. The
Canadian government was seriously
pissed off.
Roughly "Long live a free Québec" for those who don't speak french.
This impolitic outburst gave life to the Québec
separatist movement and created the
neverendum.