on *:TEXT:!shades:#: {
  set %dude1 $nick
  set %active 1
}

on *:TEXT:!lunettes:#: {
  set %dude2 $nick
  set %active2 1
}

on *:TEXT:*:#: {
  if %active = 1 {
    if $nick = %dude1 {
      set %active = 0
      /msg $chan YEEEEEEEEEEEEEAAAAAAAAAAAAAAAAAAAH!
    }
  }
  else if %active2 = 1 {
    if $nick = %dude2 {
      set %active2 = 0
      /msg $chan OUIIIIIIIIIIIIIIIIIIII!
    }
  }
}