@vickygleitz: Yeah, when I worked in customer service. Ugh ... I thought I'd get better at it over time, and people genuinely thought I was good at being friendly with customers (including my co-workers). I never did get used to it, though, and I ended up quitting all those kinds of jobs – every last one of them.
@jk1: No, but I've worked with genetically modified organisms as a scientist. Didn't worry me much.
Same question as jk1: Have you ever tried any genetically modified food (corns, soy beans etc)? If you have, did you notice any difference?.
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It is easy to go down into Hell;
Night and day, the gates of dark Death stand wide;
But to climb back again, to retrace one's steps to the upper air –
There's the rub, the task.
– Virgil, The Aeneid (Book VI)