code:

#include <stdio.h>
#include <assert.h>

int has_a_family;

void drink_too_much_all_the_time(){
	has_a_family = 0;
}

int main(){
	has_a_family = 1;
	drink_too_much_all_the_time();
	assert(has_a_family);
	printf("Happy Thanksgiving!\nI'm grateful for all the good things in my life.");
	return 0;
}