Avocado Oil
Just like other oils, avocado oil does not do well in the refrigerator. The oil can separate or lose its texture. What’s even worse is that the oil can lose its flavor which means that if you cook with it or use it for salads, it will give your food a bitter taste.
Pizza
You either love it or you hate, but fridge/overnight pizza is not really a good idea for a morning-after snack. The pizza, albeit delicious, has a great risk of contracting bacteria that could make someone very sick. Rather eat the pizza and throw out the leftovers.