"Real English 24-par for the course"

A friend of mine, who lives in the countryside in the northern part of Hyogo Prefecture, called me the other day.  Here's the dialogue:

Friend:  Hey man, what's happening?

Glenn:  Not much, everything is status quo.  How about you, what's up?

Friend:  Actually, I wanted to invite you to my house next weekend.

Glenn:  Sounds good. What's the occasion?

Friend:  I am gonna have a "Firefly Party!"  Recently, there are fireflies everywhere at night!  It is really a spectacular phenomenon.  

Glenn:  Are you serious?   There aren't any lightening bugs where I live.

Friend: That's cause you live in the suburbs. As you know, I live in the deep country!  It is par for the course for here.

Glenn:  Gotcha. Then see you next weekend. Looking forward to it!

"Par for the course" means "a regular occurrence" or "something that happens often."

The above expression has nothing to do with golf!!

But since I mentioned golf, I thought I should say "Congrats!" to Mr. F because he hit a hole in one the other day.  What are the chances of that?  I don't know the actual statistics, but I do know that doesn't happen every day... (=pure luck!!)

Have you ever hit a hole in one?