When an unsuspecting office worker crossed the path of a fearless Canada goose, the makers of this video just sat back... and watched the feathers fly.
Shot in Mississauga, in the south-western Canadian province of Ontario, the YouTube clip shows the lengths which the birds will go to protect their partners and young.
And it also shows the bumbling rage which can be unleashed by a regular guy who just wants a nice quiet lunch break.
Goose 1 - Man 0