I have an Acer C720 Chromebook. I have it in developer mode, and whenever it turns on, it shows a screen that says, paraphrasing, "OS verification is turned off, CTRL+D to continue, SPACE to start recovery." It requires you to take action before booting ChromeOS, and will beep loudly if you let it sit for a while.
My problem is that it's very easy for a non-tech savvy person to accidentally start recovery, which would delete all my local data. It's happened to me at least once so far.
Is there any way to disable this screen or make it automatically proceed after a short wait? I've tried to Google a solution, and all the answers seem hardware-specific to other Chromebook models. It's probably also worth noting that this particular model doesn't have a physical developer mode switch.