The Detective Boys were playing football in the park, as Conan often convinced them to do, when it happened.
That poor football had been kicked with unnatural force so many times, had been beaten and battered, and it just couldn't take what happened that day.
Genta fell on it and the black-and-white ball which had been loyally serving Conan for all of a month (Heavens, what it had seen during that long month...) burst, violently rejecting life, deflating into a sad, floppy, discoid object.
The kids stared for a bit before Conan shrugged and inflated the one from his belt.