Amazing Dumb People
I was looking at the website for the Dayton Air Force Musuem since Eric and I are going to visit it Sunday. I decided to run through the FAQ (Frequently Asked Questions) just in case they had some weird rule(s). I was initially a little "duh" with the musuem when I ran across this:

Frequently Asked Questions
General Information
What hours are you open?
The USAF Museum is open seven days a week from 9 a.m. to 5 p.m. (closed Thanksgiving, Christmas and New Year’s Day).
Are you open on Sunday?
Yes

However, upon further thought, I decided that they probably have to do that because the attention span of the average American is too short for them to read the entire sentence in response to "What hours are you open" where it clearly states that the musuem is open seven days a week. Why would asking if the musuem is open on Sunday still be frequent? I don't know, but I certainly believe it!