IS told me it was nasty and not to do it

I've been growing a table of microgreens on my roof top.  I've got spinach, Taiwanese spinach, mustard greens, radishes, watercress, amaranth, garden rocket, and probably something else I'm forgetting. I just sprinkled the seeds thick and eat em as they come up. IS came over for a roof topper the other night and pointed out how nasty it is to eat greens like that. I poo poo'ed his criticism and thought nothing of it. Last night, I bit into a crunch leaf. It was like it had bones in it or something. It was very gooey, and tasted like a booger. I spit out whatever it was, and went about my business. This morning, I noticed the greens were covered in tiny snails. Here's hoping I don't get any Angiostrongylus cantonensis.