I seem to recall watching an interview of a WWII era pilot who said pilots assigned to tow aerial gunnery targets were disciplinary cases.
There was one test of the shipboard Mk 15 CIWS where the automated radar locked on to the towed target, but then continued to fire at the towed cable after the target was obliterated. One fast thinking sailor turned the power off before the R2D2 would have shot down the towing aircraft.