on *:join:#:{
  if ($nick == $me) {
    set %users. [ $+ [ $chan ] ] $nick($chan,0)
    timerpart 1 5 if (%users. [ $+ [ $chan ] ] < 5) /part $chan Channel does not meet minimum user levels (5 or more people).
    unset %users. [ $+ [ $chan ] ]
    else halt
  }
}