I know these as non-spiny veggies (perhaps botanically fruits), but these spiny chayote emote “don’t touch me.” I sure wouldn’t. Internet recipes suggest boiling the whole spiny plant-porcupine, then peeling after the flesh becomes soft. I dunno.
With the non-spiny versions, funny thing, when you peel them, or just cube them, the flesh very slightly oozes a slightly slimy slippery substance. You really notice it if you don’t have a sink to wash up in.