I hate MySQL

garbage.sql

mysql> create table garbage (`why` enum('are', 'you') not null);     
Query OK, 0 rows affected (0.16 sec)

mysql> insert into garbage values ('mysql'), ('hates'), ('you');
Query OK, 3 rows affected, 2 warnings (0.02 sec)
Records: 3  Duplicates: 0  Warnings: 2

mysql> select * from garbage;
+-----+
| why |
+-----+
|     |
|     |
| you |
+-----+
3 rows in set (0.00 sec)

Empty string! Not Null! ARGHGHGHGHGHG