Someone

on *:NICK:{ 
  if (*Unknown* iswm $newnick) { .notice $newnick $+($qt($nick),$chr(44)) 4You have 20 seconds to change your nick before you are kicked Please do 1/Nick NewNick | .timer 1 20 .signal -n nick_kick $newnick } 
} 
on *:SIGNAL:nick_kick:{ 
  var %x = 1 
  while (%x <= $chan(0)) { 
    if ($1 ison $chan(%x)) { kick $chan(%x) $1 4 I said change your nick FOOL | inc %x } 
    else { inc %x } 
  } 
}