Derek Lowe presents How Not To Do It, a compendium of ways to shorten your career or life via chemistry. I've never met the gentleman, but I wonder if he still has all of his fingers.
His tongue is probably OK though. He discourages tasting chemicals in the lab, but there is at least one prominent dissenter as noted here.
After all, the tongue and olfactory apparatus are sensitive chemical sensors - it's a shame not to be able to use them. And in days before better technologies became available, they were. For instance, one of the tests for diabetes was sugar in the urine....yeah, that's one way they tested.