With the best will in the world, how is that going to help? Who on earth is going to look in the fridge for emergency information? Better by far to have it stuck to the OUTSIDE of the fridge or near the front door where it's going to catch the eye. I have an ICE message on the meter cupboard door for that very reason, right where someone who has to come in to deal with an emergency either to me or the house will see it quickly - just contact numbers and where the mains cutoffs can be found.