Lab safety is important. Really fucking important. We sometimes use some pretty crazy compounds in our work, and I expect the folks that work for me are trained and astutely follow the rules so that they (and their lab mates) are safe.
But labeling is out of fucking control and does more harm than good. Every fucking thing in our chemical room has some sort of "hazard" label - but it is not all hazardous. I get the "err on the side of caution" argument. But if every-fucking-thing is dangerous it is not always clear what you should actually be careful with.
And then there is the companies that try to profit off of a false sense of security. For example, ethidium bromide, a DNA stain commonly used to see your bands on a gel. Everyone is always told how horrible and terrible EtBr is. Turns out that is a load of horse pucky. The ridiculous hoops you jump through to "detox" EtBr are more dangerous than the actual chemical! But those "safe" alternatives to EtBr?? The ones that cost about 10x more and don't work quite as well?? Actually not safer (based on mutagenicity/toxicology).
Lab safety should be a real, thoughtful discussion. Not a knee-jerk-cover-the-university's-ass stupid exercise in pointlessness.