The Toy Story Conundrum says just because some scenario take place when you are not noticing, does not mean it does not happen at all, like the Toys being alive cannot be disputed because they are active when you aren't watching.
Of course, there are other applications of the phrase too,
C : "I don't usually kill spiders because they kill the other insects. It's like they work for me but I need them to stay in certain areas of the house."
A : "But why? they create invisible webs and are a pest, so I guess it's best to kill"
C : "I don't know if we do or if the spider gets them before I notice."
A: "Fair point, it's the toy story conundrum"
Basically being too full to move.
Richard: "Camila please, I can't eat more, I am bloated like a goat ready for slaughter"
Camila: "Richard! Can you never go down on me without talking about slaughtering animals?"