I label all my bottles not only to let others know it is not bear but also to let me know what chemicals is in each bottle.
I also used tape around the bottle so in case it crashs the tape will hold the glass pieces and chemicals in.
And if a child were looking for something to drink they would find many other things good and bad to drink before find my chemicals.
no chemicals in food bottles or in what could be mistaken as food bottles is a common-sense safety precaution, and I recommend aswell as practice it in my darkroom. rvrrything else is short-sided and might be regreted.