Besides, most places are dog-free. However, the ADA and other supporting legislation accommodates people with disabilities so this means that sometimes there's a balancing act between you enjoying a dog free experience (99% of the time) and then 1% of the time someone might have a dog with them that can detect low blood sugar for diabetes or stroke. Frankly, even if this is abused, just enabling people to have this accommodation without demanding it or disclosing medical information to strangers is worth it.

Now I'm guessing you're one of these savant medical geniuses with super powers because you can "just tell by looking at em" to determine if they're faking it. With such powers I'd recommend medical school because those powers of diagnoses are being wasted for being a pathetic reactionary who can't stand anyone different than them.