public void CleanupItemInstances()
{
if (DbItems.ContainsKey(this))
{
var itemInstancesToDelete = DbItems[this].Where(dbi => dbi.Owner == null);
foreach (var itm in itemInstancesToDelete)
{
if (itm.DBInventory == null)
{
ItemGenerator.DeleteFromDB(itm);
}
}
DbItems.Remove(this);
}
}