The universe has a vendetta against people holding ice cream cones during stressful moments.
Science will tell you it's about ambient temperature and the heat from your hands and maybe something about viscosity ratios. But that's boring and probably a cover-up for the real truth. The real truth is that ice cream has a built-in stress detector and the second it senses your cortisol levels spiking, it goes into hyperdrive melt mode.
You've seen it happen. One minute you're holding a beautiful swirl of mint chocolate chip, feeling pretty good about your life choices. Then your phone buzzes with an email from your boss or your kid starts screaming about wanting the blue spoon not the red spoon and suddenly your ice cream transforms into a sticky waterfall racing down your hand faster than you can lick.