Where’s the bug?

Where’s the bug? public virtual void RemoveOfferItems() { for ( int i = 0; i < offerItems.Count; i++ ) { OfferItem offerItem = offerItems[i]; log.Trace( “offer item: {0}, {1}”, offerItem.Id, offerItem.Description ); offerItems.Remove( offerItem ); offerItem.Delete(); } Save(); } But don’t write a test for this…