This week in Hilchos Shabbos we started the sugyos of Chazara. There is a chiddush quoted in the poskim that in regards to chazara once the food has been placed on the floor even if one had in mind to return it, it is still Asur. The reason being is because once it reaches the floor we cannot look at it as if the shiya is continuing, Reb Elyashiv held lehalacha that putting the food in the fridge would have the same effect as putting it on the ground, and would be assur in all instances even if you are holding on to it and had in mind to put it back.