mad tactics were a force multiplier, and it would have been smart to encourage them right from the start
Ramming by Chitose F1M2 Pete
On October 3, 1942 departs Shortland as part of a "Tokyo Express" run to Guadalcanal with destroyers Nowaki, Maikaze and Akitsuki plus Nisshin. On October 4, 1942, in the vicinity of New Georgia they spotted by five B-17 Flying Fortresses unexpectedly encountered these warships and attempted to bomb them at 3:40pm. Intercepted by floatplanes flying combat air patrol over the fleet, the B-17s claimed two Zeros shot down.
During the combat, B-17E 41-9118 was deliberately rammed from below by Chitose F1M2 Pete piloted by PO Katsuki Kiyomi, to prevent it from bombing Nisshin. During the ramming, the B-17's right wing was torn off and damage caused to the vertical stabilizer, causing it to crash. The ramming damaged the Pete's right wing, but both Katsuki and his observer successfully bail out and were rescued by destroyer Akitsuki. For this attack, Kiyomi earned a commendation and gold chevron.
trading a Pete for a B-17 and bailing out safely.. that is impressive
(just like the D4Y that sneaked past Franklin's CAP and almost sank it)
"No Enemy Survives Contact with the Plan" - Commander Stormwolf