My two female flatmates are idiots who do not know how to load the dishwasher.
They seem to be under the impression that inside the dishwasher are hundreds of tiny people who will scrub clean the contents no matter how it is put in or whatever food is left on it? Here are some examples (yes, I’ve been that annoyed I took photos):
Numbers 1, 2 and 6 above are examples where the mug or glass has no chance of being washed as there is something underneath it preventing water to get inside.
In fairness, I suspect a couple of glasses may have fallen down, but this should have been anticipated.
However, searching on the internet, I discovered there are others that do far worse with their dishwasher: