The officiating crew at Game 5 of the NBA Finals on Monday night found out something that most NFL refs already know: Jack Del Rio can go a little nuts sometimes.

The Raiders coach was in attendance for the Warriors home game against the Cavaliers and after a no-call went against the Warriors early in the first quarter, Del Rio did what every Raiders fan does for three straight hours every Sunday during the NFL season: He yelled at the ref.

Del Rio went nuts after Cleveland's Tristan Thompson blocked a short shot attempt by Golden State's Klay Thompson. To most people, including Del Rio, it looked like Tristan got away with a foul.

Del Rio wasn't the only one who was upset. Just look at the picture below. There's at least five people there who are each going through the seven stages of anger.

I'm not actually sure if there's seven stages of anger, but that seemed like a believable number.

Del Rio's cameo didn't go unnoticed. Raiders punter Marquette King took a picture of his coach and tweeted it out.

Anyway, if Golden State coach Steve Kerr needs someone to give his team a halftime speech at any point next season, he might want to call Del Rio.