7 reasons why WWE must part ways with Brock Lesnar after WrestleMania 34

Bonus: His behavior

A shot right on the temple.

At Royal Rumble, Brock Lesnar punched Braun Strowman right in his face as Lesnar asked him to slow down. Had it been someone else other than Strowman (God, he is strong) it might have caused a serious injury.

Jericho confronted Lesnar backstage for this.

Summerslam 2016 was a similar feat when Brock Lesnar squared off against the returning Randy Orton. The ending of the match was (and still is) debatable to be on or off the script when Lesnar attacked Orton bare-knuckled causing the latter to receive ten staples to close the laceration on his forehead.

Overall, it seems that having Brock Lesnar off the roster should be on the table for WWE think tank after WrestleMania 34 unless Lesnar decides to be on a full time contract.