Turnovers with the Cowboys will raise the ire of coach Jason Garrett who benched running back Demarco Murray for a fumble in the preseason and sat Lance Dunbar for the same incident in Week 2.
Harris wasn't benched, but he hurt his hip and had to watch Cole Beasley field punts.
"Fumbles happen, but punt return is a hard job," Harris said. "You fumble the ball you got to take it to the next play, my teammates do a good job, when a bad play happens, of picking me back up and getting me back on the right track and getting my mind right."
Harris returned and got some significant snaps on offense, even catching the last touchdown of the day, a 24-yard pass from Tony Romo in the 31-7 victory over the Rams. Romo's pass was his best throw of the day, down the seam, over a defender and into the arms of Harris, who never broke stride as he ran down the field.
It was Harris' only catch of the day but it was the cherry on top of an easy day for the Cowboys offense.
"It was a great throw," said Harris, who played 12 offensive snaps. "It was the same play to (tight end Gavin) Escobar, same route, a seam route down the numbers and Tony found me and it was a great pass by Tony."