Here's one I would have loved to have posted about back when it was happening, because a lot of people failed on this one. Thankfully someone recently reminded me of it and had a screenshot of a good example. This also reminded me of another example and sure enough that post was still there in their history. Before I continue though, let me Google something for you: click me
So, what did we learn? Frankie Manning's birthday is May 26th. He passed away on April 27th. I've never really understood why so many people are keen on acknowledging deathaversaries in the first place, but that seemed to be a popular thing to do this past April 27th. However, the fail comes in when half the people doing so are mistakenly "celebrating" his birthday instead.
Side note, as funny as the fail is, there is quite the worthy cause mentioned in one of the screenshots, The Lindy Hoppers Fund. If you have the means, I highly recommend dropping them some funds.
Click "Continue reading" below to view the full size screen grabs...