RENNES, France (AFP) - Those who think they have had a bad hair day might want to think again.A man who went to a French hair salon walked out with a burnt forehead that forced him off work for a week after his stylist attempted an Egyptian burning technique he hadn't actually mastered.Police said yesterday that the client, who remains anonymous, filed a complaint last week after going for a haircut in the small Brittany town of Lannion.