Wristbands snag too. Though the consequences are *usually* less fatal (but ask anybody who works with significant amounts of electricity or fast moving parts about that).

As far as I know the only things about me that are dire are the diabetes (type II so I don't have insulin around) and the sleep apnea (if I'm unconscious, that means they need to keep a close eye on my breathing).

I think the rest of the stuff is more along the lines of they may need to avoid giving me stuff that might interact badly with my various meds.