So I'm just sitting here editing away, then I go to switch to Library mode and a dialogue box comes up saying "Lightroom has encountered an error and needs to close." I'm thinking, alright, it must have been a bug or I ran out of RAM or something. I go to open it again and "This catalog is corrupt. Would you like to repair." Then, "This catalog cannot be repaired. Try again?" I'm sitting here thinking that Windows ate my catalog. Thankfully, after I rebooted, the catalog did repair and I didn't lose anything, but still, this is the first time this has happened. I'm also using the newest version of Lightroom CC, if anyone is curious. What's the worst loss/almost loss of photos (negatives or digital) that you've experienced?