Example with a context (YouTube link):
I drove slowly back to the office. The telephone was ringing when I arrived at the office. I went in quickly and answered it. "Samuel speaking." "Listen, Samuel," replied a voice. "Forget about Elaine Garfield. We hurt you a little in her apartment. If you don't forget all about Elaine Garfield, we'll hurt you a lot more."
I'm not exactly sure how I should understand all—as a pronoun or an adverb? It seems as though it can equally be understood both ways. For example, if we assume that all is a pronoun, then semantically the sentence will mean something like this: if you don't forget everything that you know about her, we'll hurt you a lot more. On the other hand, if we think of all as an adverb, we'll get the following: if you don't completely forget about her, we'll hurt you a lot more. The two meanings are quite different. Please, help me solve this little, weird grammar conundrum of mine.