“A caval donato non si guarda in bocca”.
What does this way of saying mean?

Every one has something that makes him unique

Horses just like people, can be very valuable to someone 

Something or someone comes exactly when needed 

“Non ha peli sulla lingua” 
What does it mean?

“Da che pulpito viene la predica”.
What does it mean?

Someone is too aggressive and attacks others also without reason 

Someone likes to be the centre of the attention 

Someone does  a mistake and judges someone else for the same mistake 

“A caval donato non si guarda in bocca”. What does this way of saying mean?