A bus-driver was driving along a foggy highway at night

A bus-driver was driving along a foggy highway at
night, and at the bus stop. There was only a lady,
very white, wispy hair and no luggage.
She climbs in and sits at the last seat. As the
driver continues there is flash of lightning and he
looks in the rear-view mirror but he can't see the
lady.
He halts the bus abruptly and looks back and
there is the lady with a little blood trickling down
her forehead. The driver nearly shits himself, but
continues driving.
Again there is lighting and he checks in the rear-
view mirror, the lady is nowhere to
be seen.
He halts the bus again and turns back, and there
is the lady with a little more blood on her
forehead looking back at him annoyed.
The driver murmurs the Lord's name and
continues his drive. Again a flash of lightning and
no lady in the mirror.
He brakes the bus, turns back and there is the
lady sitting with a lot of blood dropping down her
head and she looks at him angrily shouts, "Will
you stop braking the bus, I'm trying to tie my
shoelace here!"