Originally Posted by
caloso
Possibly. Could also have a chain derail. You could be thrown off the saddle and smash your genitals on the top tube. Or be thrown over the bar onto your face. Or into the path of a bus. Not trying to be alarmist, but big bad things can happen from little things. You know, for the want of a nail and all that.
+1 You should at minimum replace the chain so the worn chain doesn't cause further wers damage to your dirvetrian. While chain skipping and bad shifting can start to happen your biggest worry with a worn chain is that it will derail at a bad time potentially causing a serious crash.