[RUNTIME] AI using objects throws

[MonkestationIssueBot]

Reporting client info: Client Information:
BYOND:515.1630
Key:dexee

Round ID:

3446

Testmerges:

• Behold, a Box!
• [PORT] First aid analyzer rework and improvised medicine
• floran balance changes
• Serverlink implant + traitor variant!
• [PORT] Changes how Cultists obtain the bastard sword. Instead of sacrificing Heretics, you now sacrifice Null Rods, with a caveat.
• Ports Microfusion Energy Guns
• Yarr harr

Reproduction:

[19:34:04] Runtime in code/modules/mob/living/silicon/ai/ai.dm, line 789: Cannot execute null.can use().
proc name: light cameras (/mob/living/silicon/ai/proc/light_cameras)
src: Wanderer Of Winds (/mob/living/silicon/ai)
src.loc: the floor (190,36,3) (/turf/open/floor/circuit/green)
call stack:
Wanderer Of Winds (/mob/living/silicon/ai): light cameras()
Wanderer Of Winds (AI Eye) (/mob/camera/ai_eye): setLoc(the floor (192,118,3) (/turf/open/floor/iron), 0)
FR3800G (/client): AIMove(the floor (190,37,3) (/turf/open/floor/iron/dark), 1, Wanderer Of Winds (/mob/living/silicon/ai))
FR3800G (/client): Move(the floor (190,37,3) (/turf/open/floor/iron/dark), 1)
Wanderer Of Winds (/mob/living/silicon/ai): keyLoop(FR3800G (/client))
Input (/datum/controller/subsystem/verb_manager/input): fire(0)
Input (/datum/controller/subsystem/verb_manager/input): ignite(0)
Master (/datum/controller/master): RunQueue()
Master (/datum/controller/master): Loop(2)
Master (/datum/controller/master): StartProcessing(0)