The blonde wife came home from her first day commuting into the city. Her husband noticed she was looking a little peaked and asked, "Honey, are you feeling all right?"

"Not really," she replied. "I'm nauseous from sitting backward on the train."

"Poor dear," he said. "Why didn't you ask the person sitting across from you to switch seats for a while?"

"I couldn't," she replied, "there was no one there."