Headlight Fault with Rnault Clio 1.2 Petrol 2002?

Clio 1.2 petrol 2002 - Intermittent fault with headlights on starting the engine. Recently had a problem start with dipped headlights coming on at starting engine although switched off on stalk! Cycling through on stalk to side lights to dipped headlights and back works fine, but back at off position on stalk dipped headlights are on with dash lit as though in dipped on position. Fine before car had its MOT, but fault found with loose connection / reset of fron headlight. When picking the car up the keys were in the ignition at park position and battery flattened. Jump started by garage. Any ideas?