Yes. Even if you did not intentionally hurt someone, you can still be charged with assault if you recklessly, or with criminal negligence, caused injury to another person. Recklessly means you acted while aware of and consciously disregarding a substantial and unjustifiable risk. Criminal Negligence means you engaged in conduct that creates or contributes to a substantial and unjustifiable risk and failed to perceive that risk and had a legal duty of awareness. The degree of risk must be a gross deviation from the standard of conduct a reasonable person would observe. This is a higher standard than negligence in a civil lawsuit.