I was going on what you meant, not what you said anyway:)
Once you hit that post button it's permanent.
I've done worse. When my grand daughter used my computer to post at F.R. she would frequently not sign off when she left the computer. I'd come along thinking I was still signed in and make a reply to someone with grand daughter's decidedly female screen name. I even mentioned my wife once while posting from grand daughter's account.
Now that's confusion!