All Apologies?

I have known quite a few
who were over-generous
with their apologies;
people who said 'sorry'
at the drop of a hat, mostly
when they had no need to.

It was easy enough for me
to diagnose their 'bad nerves',
amongst other maladies.

The worst for apologies
were those who knew
they had done wrong, all along.
But they hoarded their apologies
for after they were at their most egregious.

They hoped that when said 'sorry'
for their worst then all their previous,
behaviour that was also heinous
would be absolved from all memory. 

That is when I doubt their sincerity.