Erratic foreign language

Not for proper multilingual games.

This is not about characters speaking their native tongue as usual, but rather those languages surfacing in speech in another. Although commonly heard with "foreigners" reverting to their native tongue for exclamations, curses, and other abrupt/unplanned statements, this tag is more about when it's done on purpose.

Also this should not include mixed language when it's normal for the region or language, for example English has many commonplace French, Latin, Spanish, and other loan words and expressions that are out of place for this tag.