From what I read, the service, with the exception of the missed appetizer was good! Take the tip down for that goof! Make it $6.00, not 20 cents! All he did was show what a jerk he is!
And I agree with this.
I pay for service as well.
If something is wrong with the service, I speak up.
Mistakes happen, cooks screw up or take too long, that's all just part of life.
If the guy/girl just doesn't care or is rude, then that's another thing. I've found that to be very rare. And again, I call them on it, because they might be having a bad day and just not realize it. People have lives outside of your own wants and needs.
If it turns out that they do not deserve a tip from me, I don't leave one.
I don't try to leave some cryptic message by leaving a .20 or .01 tip. Be an adult, explain your displeasure. Don't play games and just be a jerk.