Warning Sign of the Day #2

On the way back home, we decided to take the bus. I snapped a covert picture. What I could not easily take a picture of was the warning sign hanging behind the driver on the right hand side. Most of the warnings were the usual public transit fare. One, however, stood out:

Eating Food in Enclosed Spaces Can Produce Unpleasant Smells

Funny, I always thought this is what happened after you ate the food.