Last night's potions class was supposed to be brief. We first had a quiz, and then we had a couple of digestion experiments.
Both experiments required the test tubes (compounds + eggwhite or vegetable oil) to rest in a 37°C water bath for an hour. 45 minutes into it, we found out that the water bath had been turned off earlier in the day. Not very helpful.
On the bright side, we just have the lab final next week.