I did a production of Chinamen in college, in a small thrust space with a TINY "backstage," a corridor about two and a half feet wide immediattely behind the US wall with three doorways into the performance space. The director told me, "I'd only do this show with you as my SM, because you're the only person I know who could handle it." If you're not familiar with the show, it's a one act British dinner party farce, in which two actors play five characters.
Lights actually took their own cues, just up at the beginning and down at the end, and because of the limited space, I was the entirely of the crew; another person wouldn't fit. I had to wear a black mask and gloves because of the doors and their sight lines. I had to be invisible while being, frequently, in full view of a third of the audience.
Catching the fully set dinner table from the actress who then had to crawl under my legs to make her next entrance at the other end of the stage ten seconds later was a little tricky, but not the worst. Late, simultaneously I was helping with a quick change with one hand, pounding on a wall with another, kicking over a crash box with one foot, and screaming, "Mummy, MUMMY! There's a lady and a man FIGHTING in the bathroom!" (in posh accent) at the top of my lungs. In the dark. Half blindfolded by my no-face mask.
After that, I can do ANYTHING in the dark!