Let's post it here for the fun of it ?
Here is my latest messup:
-I saw a juicy fleet on my plunder page, I rubbed my hands together in greedy anticipation and set forth to capture the shiny ransom!
I clicked on the target, I selected my only fleet (Royal Fleet) and... BINGO! That wasn't my attack fleet (It was Royal Mail but in my hurrines...)


Moral of the messup: Make sure the names of your attacking fleets do not start with the same adjective!