Danger after dark in Gondar?

Can anyone explain why our guide is axting like the city turns into a dangerous pumpkin tight at 1030pm? Having such an incredible time in this country and meeting the incredible people of Gonder and those in the Simien mountains nearby but after 8 days, we are clearly not getting the full story about unreat in this part of the country or why he thinks it is so dangerous for us to do anything without him in this city or to enjoy the "nightclub" (aka cultural restaraunt) after 10:30pm...