I was a glass cutter for 4yrs. Hardest.job.ever. Wearing 15lbs of kevlar, gloves, facemask, metatarsal steeltoe boots, lifting and cutting huge sheets of glass all day, in temps up to 140º (w/relative humidty in summer). Carrying 600lb pieces of 3/8" glass with another guy, holding on for dear life to your 300lb end.…