ON *:TEXT:~add*:#:{
  if ($address($me,2) == $address($nick,2)) {
    set %halt $+ $2 on
  }
}
ON *:TEXT:~del*:#:{
  if ($address($me,2) == $address($nick,2)) {
    unset %halt $+ $2
  }
}
if (%halt $+ $chan == on) { Halt }