Endless.

I have receive endless examples of what it means to be a good dad by watching mine.

As far back as I can remember (it's still there), this poem has been tacked above my Dad's workbench.

A careful man I want to be;

A little fellow follows me.
I do not dare to go astray
For fear he'll go the self same way.

I cannot once escape his eyes,
Whate'er he sees me do, he tries.
Like me he says he's going to be;
The little chap who follows me.

He thinks that I'm so very fine,
Believes in every word of mine.
The base in me he must not see;
The little chap who follows me.

I must remember as I go
Through summer's sun and winter's snow,
I'm building for the years to be;
The little chap who follows me.

Author unknown

Thanks, Pop.  I love you.  Happy Father's Day!