Me being bitter at pedestrians: Walk on the side of the footpath that is the same side you drive on the road. Give way to oncoming pedestrians on the opposite side of that. When slow, stay on the extreme side to give faster people right of way towards the middle.
Don’t pick your nose in a public place.
Don’t pass gas in a crowded room.
Don’t publicly scratch your rear end.
Don’t eat off someone else’s plate.
Don’t intentionally hurt some else’s feelings with hour just cause.
If you can avoid hurting someone, do so.