The Widow & the Tanner

Many healing evangelists today fly in private jets and stay in 5-star hotels.  In Acts 9, Peter, after healing a paralyzed man and raising a widow from the dead chooses to stay in the home of a tanner.  Tanners lived on the outskirts of town because the smell of rotting flesh, urine and brines made of animal dung and brains caused the air to be heavy with a putrid odor.  Yet, this is where Peter chose to stay.  What can we learn from this, and what was this preparing Peter for?