Them: Gravity is an extremely weak force, you know.
Me: A proton, that has just entered a nuclear reaction in the center of our Sun, has a considerable speed, don’t you think?
Them: Yes, 15 million Kelvins, everybody knows that.
Me: Still it doesn’t have enough speed to escape the Sun’s gravity field, even from the surface, let alone from the center the star. (All collision obstacles aside, naturally!)
Them: This doesn’t count!
Me: Of course it doesn’t…