I had a question raised by one of my more inquisitive players upon realizing that he could disengage from combat for free and vice versa for his opponents. He said that this seemed a curiosity and I felt that his point needed to be illuminated on these most illustrious of forums.
I hereby pose the question to you, the community of Narrators/GM's,
How do you handle disengaging?
I am tempted to give some sort of check, that if passed, allows a disengaging characters opponents to have some opportunity to act or perform a maneuver targeting said disengaging character.