How to unsend a snap on Snapchat?

I experienced that and I did this:

• Disconnect the internet
• Go to settings
• Choose delete conversations
• Reconnect the internet
• Delete the conversation with the person to whom the wrong snap was sent

That's it

Me too, it happened to me!!! ? I think the only thing to do is to send a Snap to that same person saying that you made a mistake!! ?

Once you've quickly turned off the connection or put it in airplane mode, you should check Snap; the snap will have a red exclamation mark, and there will be a message below in the chat saying "failed to send, please try again." Except that if you press and hold it, it will say "cancel" or "delete," and you click on "delete," and that's it, you can turn your connection back on, and it will have been deleted.

Hello.
I had the same thing happen to me very recently (in message, not in story). If you have the Snapchat update, meaning the new version, just do it like this:
1. When you're on the camera screen, click on the Snapchat icon at the top.
2. Select the gear icon at the top right.
3. Then scroll down until you reach the "actions" section where you can see "clear conversations." Click on it, then click on the cross next to the contact you sent the Snap to.
There you go, it should work! :)

It's impossible, unless you're quick enough to remove the connection/battery so that the snap doesn't get sent..
The only solution, I think, is to delete the account before the person opens the snap (it would probably be impossible to open if the sender no longer exists). Be careful, this is just a supposition.
P.S.: the thing about black snaps is useless: the first snap sent is the first one to be read.