Rule of thumb.
If it can kill and ant in mila-seconds, what can it do to your or your pets/love ones in a matter of hours.
Our bodies are made up of very unique chemicals, when one goes out of balance, it can cause your entire system to eventually stop working correctly.
Organophosphates which are a majority of pesticides used in American homes were developed in Europe during WWII for chemical warfare. They were developed to interfer with the central nervous system, and just a drop can do a world of harm to a small animal.
A good shoe takes care of most problems.