The WRATH of JOHN shall be directed at the Asher (the Kid gunslinger) and not Fenris (the Wolf mechanic). Maybe John can muck with him by changing the unlock code on the gun cabinets
Just as a guide for Al, at John's response when the co-pilots station loses power, the smile will be wiped off his face instantly but will attempt to not shout out or thump the controls (as shouting and hitting inanimate objects doesn't normally help) but will instead slide under the controls and attempt to discover what the problem is and then to restore power to the controls. Not knowing that it was Asher that cut the power in the engine room and muttering something about being unable to do anything without any power.
EDIT: That first bit was a joke, hence why there was there was such a cheesy smiley after it.