The Truck and The Tollbooth

A truck driver looses control of his vehicle and smashes straight into an empty tollbooth. He climbs down from his cab to survey the wreckage and sees that the booth is completely in bits. A couple of minutes latter a van pulls up with a clean up crew.
The workers pick up the tollbooth pieces, spread a creamy white substance on then and then begin fitting them together. In less than an hour they have the tollbooth reconstructed and looking good as new.
"Astonishing!" says the truck driver to the crew chief.
"What was the white stuff you used to get all the pieces together?"
The crew chief replies, "Oh, that was tollgate booth paste."