 
   removeUsers: (options, callback) ->
 
-    { targets, permanent, inform } = options
+    { targets, permanent, inform, force } = options
 
     users = @users.splice 0
 
     for user in targets
-      users = excludeUser { users, user, permanent }
+      users = excludeUser { users, user, permanent, force }
 
     @update { $set: { users } }, (err) =>
       if inform


  excludeUser = (options) ->

    { users, user, permanent } = options

    userId   = user.getId()
    newUsers = []

    for u in users
      unless userId.equals u.id
        newUsers.push u
      else if not permanent and u.permanent and not force
        newUsers.push u

    return newUsers
