Artemis, I appreciate you find it difficult to explain things, but are you able to say
what you find confusing about the show -v- tell concept? For instance does this seem clear?
1 Telling -- Treacle looked disgusted after sniffing the plate of cat food -- it's all telling, as there is no room for an inference to be drawn when the reader is explicitly told how she looks
2 Part-showing, part-telling -- Treacle sniffed the plate of cat food and walked away in disgust -- there's part showing as the reader sees her walk away, but again the reader isn't allowed to draw an inference as to her reaction as it's expressly given
3 Mostly showing -- Treacle sniffed at the plate of cat food and walked away without deigning to eat any of it -- it's all showing save for that "deigning" which hints at her reaction without specifically saying what it is
4 Showing -- Treacle sniffed at the plate of cat food and walked away without eating any of it -- it's pure fact, and the reader has to infer why she's walked away, and might draw the wrong conclusion that she's simply not hungry
If that isn't clear, are you able to pinpoint what exactly is causing the problem? If it is clear, why do you think there is a problem?!
Personally, while I try and avoid episodes of all-telling as per example 1, I'm happy to use the kind of part-showing or mostly-showing of examples 2 and 3 and I suspect that most readers couldn't give a damn one way or another.