A classic French/Belgian joke (Translated from French. I always found the nationalism amusing that the French and Belgians use each other as the butt of jokes - sorry for any Belgians here that are offended, I'll raise a Belgian beer in your name later on!) Two Belgians were in a delivery truck driving through France. They come upon a bridge with low clearance. ""Hey Lou-Lou, get out and check the markings."" Lou-Lou gets out of the truck, sees that the bridge is marked ""3m"" and the truck is m…