Is it Iain's Birthday?

Seen, this morning, from the car:

• a garbage truck
• a snowplow
• a schoolbus
• a firetruck
  
• a mailman's truck
• a tow truck
• a backhoe
• tons of pickup trucks
• a van
• a freight truck
• a moving truck
• a cement mixer

All this on the way to take Iain to school. It was a truck-a-licious morning, to be sure. You'd think it was Iain's birthday.