Back in 1929, Rin Tin Tin, the famous German shepherd dog predecessor to the tv-show of the 1950's starred in a silent movie named 'Frozen River.'
Anyone who grew up watching that 1950's tv-show
www.wikipedia.org/wiki/Rin_Tin_Tin could have expected the smart doggie to save itself, save the owner, and be there to provide support for the F&G ...... all at the same time!