How observant are you?

mlbfan2

Watch the end of this clip and see if you notice anything unusual. Perhaps it is well-known, but I had never heard of it.
link


If you can't figure it out, here's an article about it.
Or, you can just read the Youtube comments.

jdip9

I had never heard of it...thanks for sharing....too funny.

Dboneesq

That was very interesting. Never heard of that before.

jalovra