I have told this story on MN before. When ds1 was going through the terrible twos, I had a dreadful morning, where he was 45 minutes into a tantrum, and it wasn’t even 8.30am - and that was on top of an hour-and-a-half long screaming tantrum the night before. I was pregnant with ds2 and was on the last shred of my last nerve, so I rang dh in tears, because I just couldn’t cope any more.
A few minutes into the call, ds1 stopped screaming, so I rang off and went to investigate, and found him at the kitchen bib, eating leftover tortilla chips that dh or I had thrown away the night before - but that isn’t the worst bit. I knew that, if I took him away from his delicious bin-snack, he would start screaming again, so I just let him carry on eating! When he got bored and wandered off, I emptied the bin, and found it a new home where he couldn’t get at it, so he couldn’t be tempted to repeat the feat.
He survived entirely unharmed - not even a tummy upset - and is now a strapping adult, married, with a child on the way. I don’t let him forget his bin snack, though - I told his best man the story, and he used it in his speech at the wedding.