I get it - everyone has A LOT going on. Everyone is busy, stressed out and caught up in their own lives. But when you have to deal w/ other people, (which everyone in society does - unless you are a hermit living in a hut in the woods) you have to be considerate.
You always have to look out for #1 - usually yourself, which is understandable. But is it really that hard to consider others for even one minute?