NFL sidelines can be a dangerous place, requiring that you keep your head on a swivel at all times. Sometimes even when you do disaster can strike. Such was the case in the Sunday Night Football game between the Chicago Bears and the Houston Texans, with a member of the chain gain suffering an injury and getting carted off the field. CLICK HERE to go to PrizePicks and use code ON3 to receive a guaranteed $50 once you play $5 in lineups! The injury occurred when a Texans offensive play developed toward the sideline. The official accidentally took a step backward as the play moved toward him, st…