I'm all for pulling playful pranks on your significant other, especially if they are done in good taste, but this YouTuber's prank might have gone a little too far!

Hammy TV decided to put chill extract on his girlfriend's thongs without telling her, before they went on a daily run, which they normally vlog, and she definitely wasn't happy!

As soon as they were about a third of the way into their run, the extract took effect and it got so bad she had to pour milk down her pants to cool it down.

I have a strong feeling that they might be breaking up pretty soon, unless she comes back with an even better prank on him!