You’d think the Mother-in-Law Lounge is on a tricky stretch of winding road considering that the building has been crashed into six times now. Most recently, it was hit Monday morning near 8 a.m. when a car came through the front door that looks out on to North Claiborne Avenue. Nonetheless, Betty Fox, proprietor of the Mother-in-Law, plans to be open Saturday for a benefit show for the club.  Maybe that can be followed by a benefit to erect a barricade.