If player has said x in the last x seconds then?

[ModoSN]

Is there a way to check if someone has said something in the last 5 minutes and if so then perform action...

Example:

You automatically /advert car bomb when you plant the car bomb.

I want to check if the person has said /advert car bomb in the last 5 minutes, if they have then do not let them plant. If they haven't then said it in the last 5 mins then plant the bomb.

Can anyone think of a way of doing this? Doesn't have to be exactly like this as long as I get the same effect.

[boston]

use GM/PlayerSay hook

and

timer.Create to set a timer.

[Black Squares]

Great way to make people ignore rules