$5 1 mile trip ends in dog bite

Leave at door, no porch light. House is on corner and walkway is on the adjacent street. Takes a minute to find house number for confirmation. Head up the walkway and see around the corner that the door is open with a lady standing in it. She gasps as the dog tries to shoot past her, and yells at him. Gets by anyway and jumps up to bite my hand. Gives my pant leg a tear and just starts barking while I walk away.

The added tip was $20, they thought I had already dropped it off for some reason. Car accident, dog bite, getting robbed, etc is something we all risk doing this gig.