Mark Cuban took part in a League of Legends show match at the Intel Extreme Masters San Jose on Saturday, and as usually happens when Cuban competes with other people, he threw around some serious trash talk. Naturally, it got a little out of hand.

Cuban dropped an f-bomb at one point during the pre-game interview, and after being informed that had earned him a $15,000 fine (with all the money going to charity), the billionaire smiled and rolled his eyes.

“So if I say it again I have to pay another $15,000?” he said, to which the host asked if he wanted to up it to $30,000. You can probably guess what happens next.

The exchange happens about one minute into this clip, and in case you might not have gathered from anywhere else in this post, this video contains explicit language.

Cuban, along with a team of four current and former League pros, played against Intel CEO Brian Krzanich. Although Cuban had just one kill and nine deaths, his team of Reginald, Meteos, Voyboy and Doublelift carried him to victory over Krzanich, HotshotGG, Chauster, Hai and Bjergsen.