Professional strength?!

I’ve mentioned in these pages before that I am an inveterate reader. I read books and magazines like a normal person. I also read elevator permits, cereal boxes, and the backs of menus. I read fine print. 
You would be amazed at the obscure things I learn. 
Today I had occasion to do some maintenance on one of my trucks. I rolled over while bleeding a wheel cylinder and came face to face with the brake fluid bottle. 
Professional Strength. 
Interesting marketing phrase, that. Who stops for a living? Are my stops more important if I’m being paid to make them? 
Why would I prefer professional strength? My stops are arguably more important to me when I’m driving my family around. Can I get personal strength brake fluid? Or perhaps a Family Size? 
Does no one else notice these things?