Tipping Anxiety

I am glad I am not the only one who experiences anxiety over when to tip.  And from my experience, this observation by Scott Adams is dead on:

Now let me digress and add some context before I continue. Those of
you who travel a lot know that if you ask a driver about his life, you
never get a story that sounds like this: "Well, I was a drifter and a
hobo for awhile, but then I got this job driving you around. It's the
highlight of my life."

Instead you usually get something more like this: "After I won the
Nobel Prize I became a dissident in my country and had to flee. I
worked as a nuclear weapons inspector for awhile. Then I did some
software programming, which is easy because I have a doctorate degree
in math. Then I invented The Clapper and retired. Now I just do this
job to help out a friend."