I had a dog named Ginger who was a real chicken shit when it came time for him to have a bath, a frequent need because he rolled in stuff like dead fish (well, not like dead fish because dead fish don't roll in anything unless it's canned salmon or tuna in a wrap). Anyway, he knew the word 'bath' and all its implications. He never learned other words like sit, behave, roll over--he had the roll over part down and that's why he learned about 'bath'. Nothing else made him shake and hide, just the "B" word. Strange dog.