Actually, I found Denis D reasonable - if you met him on equal terms.
He wrote me a contract in 1974 which I re-negotiated, paid my own fare to Moresby, found the 'employed' pilots climbing the walls (physically walking on the chairs and thumping the wall) and then met the Operations Manager (not Denis) and mate who offered me a contract to sign by the next morning.....! I suggested I had a letter from Denis which they asked to see and I suggested they had their copy and I had mine.
My response was to ring Airfast in Sydney as I had a job offer from them, met their Chief Pilot the next morning as he was transiting Moresby and went over the hills to Crowleys for two years in Hoskins (my choice). He was quite amused to read the Douglas offer!
I did work for Douglas Airways for a year in '82 - all in Daru (again my choice) and have two sets of wings (found one discarded on the Ihu airstrip.......).
So if you need a Douglas Airways (1982) version - PM me.