(What joke? The one about the guy who rolls a wheelbarrow full of sawdust out of a construction site every night. I don't know that one, Cochran said. Lucas said, The security guy keeps checking and checking and checking the wheelbarrow, thinking the guy had to be stealing something. Never found anything hidden in the sawdust, and nobody cared about the sawdust. Couple of years later, they bump into each other, and the security guy says, 'Look, it's all in the past, you can tell me now. I know you were stealing something. What was it?' And the guy says, 'Wheelbarrows.)