Question: how would you deal with an angry or concerned parent?
Answer: Have you ever had to deal with an angry parent? ... 
Stay calm and professional even if you are feeling defensive and fearful inside. ... 
Listen to their rant. ... 
Let them vent. ... 
Involve an administrator. ... 
Address their concern and investigate it. ... 
Be proactive. ... 
Document any volitile interaction with a parent.