W: Hello, David? This is Patti. I've got a problem. I'm here at the warehouse to pick up the new computer chairs, but there's nobody here. The windows are boarded up, and the place looks abandoned!
M: That's impossible. Are you sure you're at the right address? 1917 Wharf Dr. SE.
W: Yes! I'm at 1… oh, wait. I'm at 1719 Wharf Drive, not 1917. So the warehouse must be two blocks south of here!
M: That's OK. I invert numbers sometimes too. So, do you think you can find it from there, or do you need directions [chuckles]?
W: [sarcastically] Very funny, David. I'll see you in a little while.