#include <a_samp>
public OnFilterScriptInit()
{
    SetTimer("SendRandomMsgToAll", 60 * 1000, 1);
    return 1;
}

forward SendRandomMsgToAll();
public SendRandomMsgToAll()
{
    switch(random(4))
    {
        case 0: SendClientMessageToAll(0x00ff00ff, "You're playing on a stupid server! I advise you to leave!");
        case 1: SendClientMessageToAll(0x00ff00ff, "The cake is a lie");
        case 2: SendClientMessageToAll(0x00ff00ff, "If you get caught on cheating you will most probably be banned, so do it unnoticed.");
        case 3: SendClientMessageToAll(0x00ff00ff, "Server closed the connection.");
    }
}