Beats Me

[Chipchopper]

I was driving along a busy arterial road this morning, when all of a sudden this truck driver swerves across the carriageway, cutting up the traffic and bumping into the car in front.
On the back of the truck, I saw a sign saying "How Am I Driving ?"

I thought to myself, I've no idea either!

[zebo]

It's a question I've often asked when I see those notices on the back of lorries.