A-freaking-men!
As opposed to the aircraft owner, who after witnessing them trying to extend flaps and gear almost 20Kts overspeed, I told to "make sure you use your checklist" immediately before they moved their a/c to my location. As they shut down, I opened the baggage door & to quote Gomer Pyle, "Surprise, surrprise, surrrprise!", there's the checklist. FFS.