Hi Henry.

You may say”wǒ bù xiáo xīn rēng le nǐ de dōng xī”. Also do not forget to say “duì bù qǐ”.

hehe

Nice question, Vicki.
As you known “accidentally” means happen unexpectedly and not on purpose. So in Chinese, we usually say"bù xiáo xīn". Maybe because of your carelessness or negligence. “Throw”=“rēng”.
It does not matter put “dui bu qi” at first or the last.

yes,Henry.“Throw” also means “diu” in Chinese. But there are some differences between "diu"and “reng”.
“reng dong xi” means you throw sth intentionally while “diu dong xi” is more like you lost sth unexpectedly.

Yes, Henry. But never mind if you hear some one says “wo qu diu la ji” because that’s not typical Chinese.