What's the call and rule reference (ASA)

[MD Longhorn]

I hear you two... but I'm not sure I've ever seen or heard of a play where that rule was used on anything but a catcher waiting with the ball. I'm having trouble envisioning a play where the catcher is moving toward the path of the runner (at least partly the reason for the collision) and 8.7.q was the call. I've seen LOTS where the runner reacted and was then called for MC. I've seen lots where the fielder led with the ball/glove and tagged an upright runner and the ball came out (NOT interference).

I can't recall one where the fielder moved toward or into the runners path and tagged an upright runner, and the ball went flying - and an umpire called INT.