2. If possible, bring your wife and kids.
3. Listen closely to what your barber is singing. If he sings about pretty women, or about missing his daughter Johanna, RUN.
4. Do not under any circumstances mention that you are friends with the Beadle.
5. If your barber is Italian, make sure he's the cinematic type who shaves with actual care, not the theatrical type who takes comic swipes at his customers' faces.