Driving to work and an Audi(quell surprise) decided he didn't want to be in lane 4 of the roundabout and without a care in the world decided he wanted the lane I was in, lane 2. Hand on horn but after about only 2 seconds the horn cut out. Assuming its blown the fuse. About 1/2 mile later the VSA, ABS and Tyre symbol illuminated on the dashboard. Got to work, still no horn. Turned off the car and restarted it and ABS/VSA/Tyre lights are off, but Im assuming I may need to be moving for them to come back on. Had a look at the Fuse list but all seem to have their own fuses. Im night shift so I wont get a chance to look at this till tomorrow afternoon now.