It is a felony to persistently tread on the cracks between paving stones on the sidewalk of a state highway.

You may be convicted of a Class 4 felony offense, punishable by up to three years in state prison, for the crime of “eavesdropping” on your own conversation. -720 ILCS 5/14-2.

It is against the law to rollerblade on a state highway.

Intentionally avoiding walking on the cracks in the pavement is illegal.

Knocking stones into a public park is prohibited.

Throwing stones is prohibited as it might break a window.