The YouTube phenomenon Crazy Russian Hacker has no shortage of life hacks for the world, but this may be one of the most useful.
Here, he shows how to open a can of food without a can opener.
It's so simple and smart.
This could be of great use if you're ever wandering a post-apocalyptic wasteland, scavenging for food without a can opener.
Or, you know, when you go camping.
You'll never have an excuse to ignore your pets' demand for food again.
Impressed? Try it for yourself and leave a picture of the results in the comments.
For more from Crazy Russian Hacker, take a look at his YouTube channel.
Please share this life hack with your friends.