My advice to one and all: Use your heads. Leave Revis home. Err on the side of caution. Better safe than sorry. All that.
Ask Harry Carson about the horrific effects of head trauma. Ask Wayne Chrebet. Ask any of the macho old-timers who never knew the risks playing in a league that was not conscious enough of the hazards.
Revis, who remembers sticking his hand out to stop C.J. Spiller and was inadvertently kicked in the head by Bart Scott, suffered a mild concussion, which is not as worrisome as a moderate or severe concussion. It still is a concussion. It still is the head.