Looks like you've never used the secret question to recover your password, otherwise you'd know that if you use the secret question to recover your password, your account will be locked and you'll have to contact the account recovery team. You can read about it here.
No need to use it for me to know what it could happen because it's all over the forum on do's and don'ts. Besides that, i really hate that security questions in any website that require it that's why i didn't touch that thing unless it's required.