I did the Bladder of Steel achievement on Medium Vocals. Some of those songs have solos, that’s when I’d run to the bathroom. The setlist is not randomised, so I knew in advance when the solos were. I planned it out.

I cooked a whole pot of Kraft Dinner with hot dogs and green beans in it. Not a meal I’m proud of now. But it was filling, it tasted good, and best of all, it held up sitting out for a long period of time. I mean I had the pot on a pot holder in front of me. I ate when I needed to, and when I could. I also had a gallon of water on standby. I don’t remember the entire set. I do know at one point I was “late” coming back from the bathroom, the song was going on and I was missing line after line, my “crowd meter” dropping. I got there in time and started singing, and one “excellent” (highest rating) rated line sends you straight to the top of the crowd meter. I could have gamed it so I could miss a lot more than I did, and just coast through. The game is very forgiving, especially on lower difficulties, and especially on vocals.