How often do you see Queen of the United Kingdom at face-off in a hockey game? Once in a lifetime, probably, although she's officially a head of state of Canada.

Anyway, at the end of her visit to Slovakia, Elizabeth II dropped the puck for the face-off in the exhibition match between Slovakia's Poprad Aqua City and British Guildford Flames.

Poprad scored six minutes into the game...

Elizabeth II had, apparently, enough, and left.

Scroll down for the face-off photo.

Here's more in the gallery.