There are several natural enemies of the unicyclist. Loose shoe laces are one of them. You’re buzzing along on the uni, on road, off road, unbeknownst to you your shoelace has come loose and is winding itself around the pedal spindle and anything else it can find. Before you know it you’re posting pictures to the unicycle forum, x-rays of the new plates and screws in your body. No joke!
Seriously, why risk body slapping the earth without warning or choice. Check your shoe laces often during a ride. Double them over, tuck them in, wear shoes that have a flap to keep laces out of the way, or funky laces like the Yankz! Sure Lace System that don’t tie at all.