So that's why they call'em "Practices"

If you have this¹
And you have these¹
Diagnosis is this²

However this³ is an
anomalous factor
When this³ is present,with this¹
or these² ,as opposed to these¹
It cannot be this²...It's this⁴...probably

Thanks jerk
I came to you for answers
you handed me a riddle
an "I don't know...see you again"
With a "pay me" in the middle

Guinea pig me again
Mmm gimme pills
take my money,have my trust
swear to cure my ills

I didn't know that
snake on a stick
represented the practice
of probabilities...

Prick.