I just got an "innocent" commercial e-mail which contained a picture that is just the type of thing that I find very triggering. If I didn't act fast, my entire sobriety would be at risk of collapse. Boruch Hashem, I was able to apply the three second rule (actually, quite a bit faster). I immediately covered the screen, deleted the message and emptied my deleted items folder to make the message completely irrecoverable. Frankly, that hurt somewhat, and still does, but the alternative would have hurt a trillion times more (I'd say a quadrillion, but you'd think I'm exaggerating!).
To paraphrase the UNCF - "Your sobriety is a terrible thing to waste!" B'Ezras Hashem, I'm now up to day #560 clean.