Editing the floodcheck message

[imported_MaDCaT75]

How would I edit this message here:

Sorry! The administrator has specified that users can only post one message every $vboptions[floodchecktime] seconds.

So that it would generate random sayings such as:

Sorry! The administrator has specified that you may "give us a piece of your mind" every $vboptions[floodchecktime] seconds.

or do another random message like:

Sorry! The administrator has specified that you may "spew forth your knowlege" every $vboptions[floodchecktime] seconds.

Thanks for your help in advance.

Also to any moderators:

I cant provide any screenshots as I cannot do so. This is the best description I can do.