For example.
When they were filming this commercial:
Microsoft Surface TV Commercial, 'Trusted by the Pros, Built for the Fans' - iSpot.tv
Apparently when Russell throws that pass to Baldwin in the commercial, they finished the shot and a bunch of people were clapping saying "nice catch doug e fresh" and Russell starts yelling "did you not see that fucking throw I just made to him" and stormed off the set so they had to cancel shooting for the rest of the day.
Before that happened, he had ordered a hot chocolate and when it was ready someone announced over the PA "russell your drink is ready" and he stood there and said "is no one going to get that for me? Im fucking russell wilson?" and then after no one did, he walked over and dumped it out on the ground
The guys from MS who worked with him said he was by far most difficult athlete they had ever worked with.