Chalk holders are slippery little things.
Charlie knew he'd had one earlier, but he seemed to have set it down somewhere and then, no matter how many piles of paper he moved, he just couldn't find the damn thing. That was why he had chalk on his hands when Colby popped in for a visit and that is why there was chalk all over Colby's shirt and down the back of his jeans when he went back to work.
"So here I am," Charlie groaned, head down. "I'll have to explain everything.."
"For want of a chalk holder," Larry said.