Unchecked

An unquenchable fire that later turns to flame, An unquestionable power that turns to blame. An uncoachable student can't get the fame, An unstable player can't win the game. An aggressive tiger needs to be tamed, An eccentric dude accepts the shame. A rigid heart can turn to rock, A non-Muslim salivating for pork. A solitary sheep apart from the flock, A stitch in time ticks like a clock. What will you bring to fill your stock? A naked wire can give a shock. A mimicking act is just a mock, A bang on the door produces a knock. Don't leave it reckless, tie your knot, The bolt is loosening, add a nut.