Poor quality of work. Unnecessary scarring. Excessive fees and poor skills. Additional scarring on follow-up appointment. Seemed to be mad that patient pointed out flaws in his "work". Lack of compassion for another human being.
Before you allow someone to do surgery on you, make sure you do extensive homework on that physician. Don't just take the word of another physician who may just be a friend and refers other doctors on that basis.
Don't take it for granted that a doctor is compassionate about other human beings and hold their standards to the degree that they would for themselves and their families.
Lessons learned too late.
Paid for the best quality of work and received sub par results.
Just because you like a doctor doesn't mean they give good referrals.
Caveat emptor . . . "Let the buyer beware". Doesn't just apply to buying real estate.