1. Place yourself and an AI unit near a road barrier object (example location - North end of Agia Marina 030061)
2. Give the AI a waypoint so that there is a road barrier between him and his destination. Set his behaviour to SAFE or CARELESS.
3. Observe the AI crawling under the barrier but not standing up again, crawling toward his waypoint.
4. Change his behaviour to any other mode and see him crawl under, then stand up and continue.