function reprogKnife(damage, activator, caller)
		--if the caller is a giant, give up
		if caller.m_bIsMiniBoss == 1 then
			return
		end
		
		--this is not a good way to detect backstabs, but it will have to do.
		
		local spyLookDirection = activator["m_angEyeAngles[1]"]
		local callerLookDirection = caller["m_angEyeAngles[1]"]
		print(spyLookDirection)
		print(callerLookDirection)
		
		--if the target is not facing you, trigger the effect. Should be identical to actual backstab hit detection.
		if (callerLookDirection - spyLookDirection) < 90 or callerLookDirection - spyLookDirection > 270 then
			--reprogram caller for fifteen seconds and say the attacker did it.
			caller:AddCond(43, 15, attacker)
			
			--timers do not make the script wait for them to end before continuing, both will be started
			--at the same time
			
			timer.Simple(5, function()
				if caller:IsAlive() == false then
					return
				end			
				--make caller take friendly fire after 5 seconds
				caller:SetAttributeValue("receive friendly fire", 1)
			end)
			
			
			--purge friendly fire attribute after 15 seconds (reprog is removed by cond duration)
			timer.Simple(15, function()
				if caller:IsAlive() == false then
					return
				end	
				caller:SetAttributeValue("receive friendly fire", 0)
			end)
		end
		

end