In the Justice League, "Twilight". Darkseid makes a deal with Brainiac. He will hand Superman over to him if he doesn't vaporize Apokolips.
Although Robots/androids don't lie, they CAN change their minds, so it wouldn't be lying, right? Can you really trust Brainiac not to destroy you or your home?
Hope for the best,expect the worst.You should always have a back door plan with whatever deal you make with Brainiac.Knowing the history I would think you'd have to think two steps ahead and prepare for any contingencies.