McDonald’s ice cream, shakes, and McFlurries are a whole other story. Because they are dairy, they go bad fast. If you leave a McFlurry on the coffee table, it will turn into a sad, liquidy puddle within 20 minutes.
That puddle is a bacteria buffet. Do not be tempted to slurp it up. After an hour, it’s not ice cream anymore—it’s a science experiment called “What Happens to Milk at Room Temperature.” Spoiler: it’s gross.
If you get a shake and can’t finish it, put it in the freezer stat. Even then, the texture gets weird. Ice cream is a now food, not a later food. Live in the moment, friend.