also big-small (escaped) fuck up of the day: in my general extremely tired stupor I forgot to turn off the laser for the raman spec while changing samples. lifted the curtain to see that my sample was green. a solid ten seconds of "green sample? huh?" and NO blink reflex before I realised that the green was the laser. dropped the curtain and FREAKED. I did put the shutter in so green was much reduced in intensity but many a nightmare story about class 3/4 lasers about blindness and permanent visual defects. and tbh i'm not sure what class my laser is exactly. such details never quite stuck in my mind. that said – three different "checkpoints" for the raman; shutter, switch and curtain – hoping that with one in it should be fine (at least, I am not presently blind). why do they let me around the instruments. i am not adult enough for any of this
