I’ve never liked it when anyone pointed a finger at me...or a pencil or fork or anything at all. In the first place it’s just very rude...but it’s a sure way to create friction and bad feng shui between two people immediately. If someone does this to you, then you must immediately turn away so you are not in the “line of fire”. Or even better, use your hand to symbolically “push” the energy away from you. With you palm facing outwards, push the air outwards three times - this will do the trick!