Why I didn't like enum types in C until I learned about clang -Weverything -fsanitize=enum

enum.c

#include <string.h>
#include <stdio.h>

enum car { honda };

enum number { ZERO, ONE };

enum number function_returning_number(char const *keyword) {
	if (!strcmp(keyword, "zero"))
		return ZERO;
	if (!strcmp(keyword, "one"))
		return ONE;
	return -1; /* gcc and clang silent */
}

int main(void) {
	enum number test = function_returning_number("one");

	test = 1500; /* gcc and clang silent */
	if (test == 1500) /* gcc silent, clang says this is always false */
		puts("test == 1500");

	test = honda; /* gcc silent, clang warns about implicit conversion */
	if (test == honda) /* clang warns and gcc suddenly does too! */
		puts("test == honda");

	return test;
}

clang -Weverything -fsanitize=enum does the job!