That was what the sign said at a local BBQ joint. My co-workers and I decided to have a lunch meeting and that sign was there. I brushed off my best Cosby impression. Practiced it a bit while waiting in line to order by repeating some phrases ending in Jello or Camille. Then talked with my co-workers about if they too were going to take advantage of the 10% off.
Oddly enough amongst five individuals I was the only one who ordered with a Cosby voice. I know the lunch itself was not very mustachian but the combination of a price reduction by having a bit of fun was so hard for me to pass up. I know it's not much of a topic, just thought it was an odd thing.