Why would you waste money on getting him a CDL, when his own experience has demonstrated that such paperwork is only so much anti-competitive BS taxation nonsense, and that anyone with half a brain and ordinary drivers' license training can drive a 70-passenger bus safely? Remember, it was a CDL-operated bus that flipped over on the freeway.
"Remember, it was a CDL-operated bus that flipped over on the freeway."
Update; I heard on one station that the wreck was caused by a passenger attacking the driver.