I seriously doubt a van driver makes more than any 74 driver off first year pay. Will a buck or two really kill you? At my freight dog outfit we got the tip money in the old contract, not the new one, but the pay and work rules improved greatly. Some jobs are more or less designed for tips to supplement the low pay scale. Flying an airplane is not one of them. Don't be a cheap bastard and give people a break if they deserve it.