That won't hurt you, only compounds of mercury are toxic. That's yet another liberal hoax.
Jerry Brown recently vetoed a bill to prohibit smoking in State Parks, presumably to avoid a loss of park use fees, so I feel free to light up my pipe on the trail when not near dry grass. Reactions I get are about 30% people spot the pipe and smile, 50% no reaction, 20% make a non approving face. One guy cut the corner of a switchback to avoid me which is irrational paranoia. They are the ambulatory psychotics who get these ridiculous paranoid laws onto the books. I call it “engineered insanity”.
That isn’t a complete liberal hoax...like most things, a drop isn’t going to kill you immediately, and you can’t freely ingest it in unlimited quantities with no effect.
I have a degree in Chemistry, so I know that the vapor pressure of mercury is reasonably low, and mercury that has vaporized into a contained equilibrium can exceed toxic levels.
You re correct, though...in normal contact, in a room with even minimal ventilation or a breeze, the amount of mercury liberals would make people put on environmental suits for is just nutty. However, in a space where even someone walking by would create enough of a breeze to prevent achieving equilibrium and resulting toxicity.
Your point is well taken, though. You want to laugh when you read about the liberal (bureaucratic) approach to this, if someone breaks a thermometer and such...