Hairy Hound?

 A hairy buttocked hound with a dose of delusional madness,*

I'm still a dreamer with a love of wisdom.

I’m not covered in scales, or given to ticks, *

but divination from bones of sacrificed fish is one of my tricks,

as I bend over at a sharp angle to contemplate my navel - ***

(I guess folks will wonder what the heck that is?)

I am known for philanthropy*rather than love.

So I pray any First Footer* who’s sent from above,

will be no shrewd, unprincipled person**but a good friend of mine.

Otherwise, why bother wasting my time?

 
*Cynanthropy - a delusion in which a person believes himself to be a dog, and behaves like one.
 
**Ticks are a group of ectoparasitic arachnids. Ticks feed on the blood of vertebrates including mammals, birds, reptiles and amphibians. Ticks feed on vertebrate blood before leaving the host, moulting and then finding a different host. Adult female ticks need a blood meal before they can reproduce.
 
***Navel, also called umbilicus, plural umbilici, or umbilicuses, in anatomy, a small depression in the abdominal wall at the point of attachment of the umbilical cord (q.v.). It indicates the point through which the mammalian foetus obtained nourishment from its mother through the blood vessels of the umbilical cord.
 
*Philanthropy - the desire to promote the welfare of others, expressed especially by the generous donation of money to good causes.
 
*Qualtagh The first person one encounters, either after leaving one's home or (sometimes) outside one's home, especially on New Year's Day; a first-foot.
 
**Snollygoster - a shrewd, unprincipled person