... or someone with a sense of humor.
Ask Google Maps for driving directions from New York, NY, to Dublin, Ireland, and you will receive painstakingly detailed directions. Step 23 — of 85 — tells you to "Swim across the Atlantic Ocean 3,462 mi." Distances are shown in miles all the way to Dublin. The return trip shows distances in kilometers, requiring you to "Swim across the Atlantic Ocean 5,572 mi."
This item has been going around the blogs. I saw it on Boing Boing.